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Subject |
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Replies |
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Last post  |
| klumba and 18 Guests are viewing this board.
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Good General Chemistry Books
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Mitch
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68
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23362
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November 18, 2009, 08:52:13 PM
by marthauz
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Online homework - your opinion
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LQ43
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28
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6773
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November 18, 2009, 06:17:29 PM
by pear
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What would be a good website to review chemistry with?
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Aerosion
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25
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11223
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November 15, 2009, 10:09:34 PM
by Star
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FORUM RULES: READ THIS BEFORE POSTING!
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Borek
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0
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1761
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April 21, 2009, 12:36:24 PM
by Borek
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hi, another question
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cœur_vaillant
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17
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1118
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Today at 11:44:30 AM
by klumba
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i need help with an interview with an chemical engineer
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arta
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5
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73
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Today at 10:48:14 AM
by arta
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Protein Unfolding: "microview" entropy
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fender1289
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1
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51
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Today at 06:21:50 AM
by Yggdrasil
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Cooking down Nitric Acid
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marc
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1
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27
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Today at 06:20:12 AM
by Borek
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Unit Conversion.
|
istrydummy
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1
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38
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Today at 05:23:48 AM
by JGK
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need help forming an equation for a chemical reaction
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brightsandflats
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3
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77
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Yesterday at 11:57:28 PM
by cooltales
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table of standard potentials
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pear
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1
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24
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Yesterday at 11:41:44 PM
by Borek
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Differences in vibrational parameters of 2 isotopes, H2 and D2
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Chaste
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1
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38
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Yesterday at 09:22:19 PM
by Dan
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Light Absorbtion of Hydrogren Atom
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mcgoo
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3
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38
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Yesterday at 08:50:10 PM
by Borek
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Hybridization
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Sceak
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3
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96
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Yesterday at 08:02:53 PM
by renge ishyo
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Temperature and the Equilibrium Constant
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hunter457
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1
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49
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Yesterday at 07:51:29 PM
by pear
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I need help naming this compound please!!!
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ScienceDweeb
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0
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22
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Yesterday at 03:51:47 PM
by ScienceDweeb
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Electron affinity
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Moz
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2
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35
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Yesterday at 03:49:26 PM
by Moz
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Bond angles
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Hemidol
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1
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52
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Yesterday at 03:40:39 PM
by cooltales
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Comparative Free Energy Question
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fender1289
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1
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29
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Yesterday at 03:07:28 PM
by renge ishyo
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electronegativity
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Moz
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3
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54
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Yesterday at 12:58:15 PM
by HorseFurHire
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Help please with Bond Polarity problem
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sam12103
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2
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40
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Yesterday at 12:50:10 PM
by HorseFurHire
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Help please with finding Bond angles, PLEASE someone help me?
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sam12103
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2
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35
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Yesterday at 11:25:53 AM
by sam12103
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TI83 calculator and chemical kinetics. Any experts?
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molemole
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1
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35
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Yesterday at 09:41:44 AM
by sjb
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Chemical Reaction Question
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guybrush
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2
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50
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Yesterday at 08:44:10 AM
by guybrush
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Affect of adjacent amino acids on pKa values
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James D
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0
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27
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Yesterday at 06:21:45 AM
by James D
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Help on ions whether or not found in chemical compound
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sam12103
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1
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32
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Yesterday at 02:53:08 AM
by orgoclear
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electrochemistry; H3O+ + OH- ---> 2H2O
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pear
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1
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41
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November 18, 2009, 09:37:36 PM
by Borek
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Stuck on this redox question:
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jagger04
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4
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67
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November 18, 2009, 07:35:20 PM
by renge ishyo
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Valance electrons of transition metals
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Moz
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2
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39
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November 18, 2009, 06:55:47 PM
by Moz
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∆H and ∆S for the reaction 2O(g)->O2(g) ?
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fender1289
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1
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35
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November 18, 2009, 05:46:34 PM
by renge ishyo
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Help please on names of molecular/electron pair geometry
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sam12103
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2
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117
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November 18, 2009, 04:00:51 PM
by ImNotQ...
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question about flame test?
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tori
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3
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146
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November 18, 2009, 01:29:09 PM
by marquis
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Balancing equations
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Shaun1979
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3
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124
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November 18, 2009, 10:22:17 AM
by Borek
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Help please when drawing Lewis diagrams
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sam12103
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3
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68
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November 17, 2009, 07:18:32 AM
by renge ishyo
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Please help me on a problem on describing the electron pair geometry and the mo
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sam12103
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2
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55
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November 17, 2009, 06:54:30 AM
by sam12103
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Concentration of lactate in the initial blood : Spectrophotometer question.
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gggggggggg
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2
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61
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November 17, 2009, 01:54:31 AM
by gggggggggg
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Some Chem. Calculations concerning units mostly. Appreciate the help..
|
istrydummy
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7
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119
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November 16, 2009, 10:14:44 PM
by Borek
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Need help finding total pressure produced.
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White Mage
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4
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98
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November 16, 2009, 08:50:47 PM
by Borek
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A problem with Thermochemistry (Heat of Fusion of Ice)
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Sekminara
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1
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53
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November 16, 2009, 08:42:08 PM
by Borek
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Chemical Test
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gcp171207
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1
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62
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November 16, 2009, 02:35:09 PM
by marquis
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IONIC REACTION HELP URGENT!!!!!!!!!!!!!!!!
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morphius
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1
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53
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November 16, 2009, 12:58:03 PM
by Borek
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Reaction between gases to produce a solid compound.
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teoporta
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8
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114
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November 16, 2009, 11:32:10 AM
by teoporta
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Heat of combustion/enthalpy problem?
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ChmNerd111
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1
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52
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November 16, 2009, 11:22:22 AM
by GollumsLunch
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Effect of H202/NaOH
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daylightsshadow
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1
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84
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November 16, 2009, 06:28:26 AM
by brudman
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Acidity Function
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brudman
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0
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29
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November 16, 2009, 05:33:30 AM
by brudman
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Heat formation
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Beetle
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3
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67
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November 16, 2009, 02:15:15 AM
by Borek
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stumped on a homework problem
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bioguy2
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21
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263
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November 16, 2009, 01:44:54 AM
by Borek
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Question about a solution problem
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bioguy2
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1
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53
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November 16, 2009, 01:39:26 AM
by Borek
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calculate the total heat (J) needed to convert...
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pistaciolow
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8
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140
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November 15, 2009, 10:25:28 PM
by DrCMS
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Hybirdization
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Geddoe
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1
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64
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November 15, 2009, 06:31:35 PM
by orgoclear
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CHEM *delete me*!
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Beetle
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1
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44
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November 15, 2009, 12:53:48 PM
by Beetle
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Flame testing of alum
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ILoveISO
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2
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160
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November 15, 2009, 12:01:31 PM
by ILoveISO
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O-H Bond Energy
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anon13
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3
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68
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November 15, 2009, 10:57:23 AM
by anon13
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Percent Composition
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ChmNerd111
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1
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57
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November 15, 2009, 10:31:46 AM
by Borek
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Thermochemistry Problem?
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mef131
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1
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50
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November 15, 2009, 10:21:39 AM
by ChmNerd111
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Limiting reagants problem
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Laafo
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1
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44
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November 15, 2009, 09:00:02 AM
by Borek
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What mass of ethanol is present in the vapor?
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pistaciolow
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0
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49
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November 15, 2009, 08:36:32 AM
by pistaciolow
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osmotic pressure
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moil60
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1
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85
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November 14, 2009, 10:38:26 PM
by Borek
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Balance using the Half Reaction method?
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wuzzuh
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1
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57
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November 14, 2009, 01:08:11 PM
by renge ishyo
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Applied Stoicheometry help
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Laafo
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1
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53
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November 14, 2009, 12:20:19 PM
by Borek
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Calculating Enthalpy
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renia45
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0
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49
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November 14, 2009, 11:01:10 AM
by renia45
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calculating ΔH°vap
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pistaciolow
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0
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54
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November 14, 2009, 10:20:54 AM
by pistaciolow
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Heat of reaction of Acetylene gas....?
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lou_skywalker
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0
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50
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November 14, 2009, 08:34:19 AM
by lou_skywalker
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Vapour and osmotic pressure
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pramod
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1
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53
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November 14, 2009, 07:56:00 AM
by Dan
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Paramagentic or diamagnetic atoms
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poao
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3
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89
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November 13, 2009, 11:49:00 PM
by sjb
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thermochemistry, chem lab help
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panchi
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1
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76
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November 13, 2009, 10:56:23 PM
by Borek
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Balancing a dehydration equation.
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Arizona Baby
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1
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109
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November 13, 2009, 04:25:04 AM
by Borek
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chem lab on molecular mass of a volatile liquid
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forever22
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1
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109
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November 12, 2009, 09:31:52 AM
by JGK
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Determination of equilibrium constant for a reaction
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scarletthj
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0
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56
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November 12, 2009, 04:11:25 AM
by scarletthj
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Iodine solubility
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djiang87
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3
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235
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November 12, 2009, 03:35:37 AM
by djiang87
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Solubility of copper(II) sulfate with pH of solution
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apathy
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2
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88
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November 12, 2009, 12:29:47 AM
by apathy
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acid/base vitamin C titration
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jcwright
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5
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1167
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November 12, 2009, 12:02:25 AM
by Borek
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Please help in question on Periodic Trends and Structure of Atom
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sam12103
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1
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83
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November 11, 2009, 09:02:13 PM
by Borek
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How to explain Thermal Degradation of organic compounds?
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shadowrains
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0
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64
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November 11, 2009, 07:18:00 PM
by shadowrains
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End points in strong-base titration of mixed acids
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_cheers
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2
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151
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November 11, 2009, 06:09:34 PM
by _cheers
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How do I extrapolate the linear portion of the curve to find T[sub]f[/sub]
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meghan
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1
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102
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November 11, 2009, 05:04:01 PM
by The Cancer Curer
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Simple equilibrium question
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Nemesisof99
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1
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63
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November 11, 2009, 04:43:11 PM
by The Cancer Curer
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(Difficult question) Periodic Trends and Chemical Properties, question
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sam12103
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0
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59
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November 11, 2009, 04:08:01 PM
by sam12103
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Acid/Base properties based on number of O and H atoms?
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magician13134
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1
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90
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November 11, 2009, 11:11:13 AM
by renge ishyo
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Ideal gas law(PV=nRT) problem.
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nightowl1
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2
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139
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November 11, 2009, 11:06:41 AM
by paige~carbonate
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Do molar concentrations affect a Kp constant?
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BiancaBeeh
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4
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122
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November 11, 2009, 10:12:44 AM
by renge ishyo
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Determine fractions and density of a mixture
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LexDoc
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1
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67
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November 11, 2009, 09:57:20 AM
by Borek
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Chemical equation?
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SaraW
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16
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272
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November 11, 2009, 09:00:29 AM
by Borek
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bond enthalpies help please
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bpeck8
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4
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175
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November 11, 2009, 09:00:13 AM
by sjb
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Electron Configuration of Atoms and Ions and Magnetic Behavior Question
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sam12103
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1
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101
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November 11, 2009, 08:27:50 AM
by renge ishyo
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Potassium Nitrate with sugar and coal.
|
oneat
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3
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113
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November 11, 2009, 06:41:33 AM
by billnotgatez
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Equilibrium Partial Pressure Calculation?
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BiancaBeeh
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0
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41
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November 11, 2009, 06:41:17 AM
by BiancaBeeh
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calculating vapor pressure
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pistaciolow
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0
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58
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November 11, 2009, 05:27:34 AM
by pistaciolow
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When is pKa = Ka?
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nonlinear
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3
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124
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November 11, 2009, 02:47:53 AM
by Borek
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change in enthalpy
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jjkwest1
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1
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90
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November 11, 2009, 12:36:00 AM
by Borek
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Hydrogen orbital
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jammydodger
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0
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90
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November 10, 2009, 01:29:53 PM
by jammydodger
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electronic spectra: Vibrational bands of iodine.
|
Chaste
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3
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99
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November 10, 2009, 03:39:44 AM
by catalyst
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In order for a chemical reaction to occur?
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kirstienisbett
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1
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97
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November 10, 2009, 03:31:22 AM
by catalyst
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Adjusting pH
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elwplw
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4
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127
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November 10, 2009, 01:35:07 AM
by elwplw
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Predicting reactions question?
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maccha
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1
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88
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November 09, 2009, 09:15:20 PM
by Borek
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vapour pressure of pure liquid
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kirstienisbett
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1
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73
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November 09, 2009, 08:43:13 PM
by Borek
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sodium tert butoxide
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elfin1mf
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1
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102
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November 09, 2009, 03:09:03 PM
by nj_bartel
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Stoichiometric coefficients as powers: no in rate laws, yes in equilibriums?
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ikjadoon
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2
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102
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November 09, 2009, 02:59:13 PM
by ikjadoon
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Ionic vs. Covalent
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Jules18
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1
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92
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November 09, 2009, 11:18:02 AM
by catalyst
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Vibration and Minimum Energy
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babyruth789
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1
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98
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November 09, 2009, 08:09:50 AM
by renge ishyo
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Predicting the Direction of an Acid-base Reaction
|
hunter457
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5
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187
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November 09, 2009, 04:05:07 AM
by hunter457
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Help with a Heat of fusion of ice and Specific heat of water
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blitznfire
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2
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801
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November 09, 2009, 01:55:14 AM
by catalyst
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Using Hess's Law
|
meghan
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2
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126
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November 08, 2009, 11:46:30 PM
by meghan
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Balancing Redox Reactions
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hunter457
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2
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155
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November 08, 2009, 09:30:35 PM
by Borek
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Quantum Numbers and Electron Configurations help please?
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sam12103
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1
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93
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November 08, 2009, 09:17:05 PM
by Borek
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Determining the Kb from the Ka
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hunter457
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3
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128
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November 08, 2009, 09:15:31 PM
by Borek
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Calculate wavelength in pm associated with electron traveling 60% of the speed o
|
Lin
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2
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96
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November 08, 2009, 09:11:45 PM
by Borek
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Help with electromagnetics and radiation!
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babyruth789
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1
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134
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November 08, 2009, 08:00:38 PM
by sjb
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SiO2 acidic?
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maccha
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3
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144
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November 08, 2009, 10:01:52 AM
by FeLiXe
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Common Reagents Books?
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KBtoys77
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1
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84
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November 08, 2009, 08:44:20 AM
by Borek
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Properties of Amber Glass?
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KBtoys77
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0
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61
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November 08, 2009, 06:26:12 AM
by KBtoys77
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Help electron configuration of metals in the third transition series?
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sam12103
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1
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105
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November 08, 2009, 05:55:34 AM
by cth
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Figuring out the best reaction for a chemical car.
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Entrigued
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11
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225
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November 08, 2009, 04:51:25 AM
by Entrigued
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Formal charge question
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maccha
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2
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109
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November 08, 2009, 01:24:46 AM
by cth
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Molecular polarity question
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maccha
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2
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113
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November 08, 2009, 01:08:04 AM
by cth
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KCl is ionic or polar?
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nightowl1
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1
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116
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November 08, 2009, 12:50:08 AM
by cth
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Phosphate buffer
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_cheers
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0
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54
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November 07, 2009, 03:20:06 PM
by _cheers
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EDTA titration
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_cheers
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0
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67
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November 07, 2009, 03:17:28 PM
by _cheers
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Gram needed to complete a reaction
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miss.strw
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2
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117
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November 07, 2009, 11:27:19 AM
by miss.strw
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Reaction of magnesium with oxygen and water?
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maccha
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1
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90
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November 07, 2009, 10:18:19 AM
by aurophilic
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MeOH vs EtOH Wash
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evanmurad
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5
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159
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November 07, 2009, 02:04:18 AM
by Dan
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Salt bridge
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Schrödinger
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25
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286
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November 06, 2009, 11:11:59 PM
by arjunarul
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Calculating delta G given the dissociation of a weak acid?
|
gt101
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1
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151
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November 06, 2009, 08:41:33 PM
by Schrödinger
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Grams of solute in the following?...
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AngelaV
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1
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114
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November 06, 2009, 07:21:15 PM
by UG
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Few Questions. Could you please hel?
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intrepid
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7
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193
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November 06, 2009, 02:21:48 PM
by intrepid
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standard enthalpy of formation
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KitCh
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3
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143
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November 06, 2009, 08:53:56 AM
by lgseccionph
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Moles to Grams
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Laafo
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5
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185
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November 06, 2009, 08:51:53 AM
by lgseccionph
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homework boyal charles temp pressure volume
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Beachgirl
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1
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93
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November 06, 2009, 07:50:47 AM
by Borek
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Nitric Acid Test on Lead Hydroxide
|
Patrick
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1
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119
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November 06, 2009, 06:04:19 AM
by Entrigued
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Percent uncertainty
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bpeck8
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3
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153
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November 06, 2009, 03:23:35 AM
by JGK
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Molecular structure
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katatonic
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1
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115
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November 05, 2009, 09:27:57 PM
by UG
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Photons with Thermochem
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giayojoseph
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2
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124
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November 05, 2009, 08:57:42 PM
by giayojoseph
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Effective Nuclear Charge
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Jimmy
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1
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115
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November 05, 2009, 08:05:31 PM
by renge ishyo
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I need help making a flow diagram for Group 1 Cations
|
WahooMan
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1
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137
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November 05, 2009, 04:39:11 AM
by WahooMan
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Arrhenius and Bronsted-lowry definitions.
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Dubs
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2
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128
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November 04, 2009, 09:20:28 PM
by AWK
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Limiting Reagent Problem combined with Gas Law Problem
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nightowl1
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8
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143
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November 04, 2009, 06:49:08 PM
by nj_bartel
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Acid-Base Titration
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Lanochka
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0
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84
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November 04, 2009, 04:57:26 PM
by Lanochka
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What is the definition of a state?
|
Chaste
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0
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63
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November 04, 2009, 03:18:59 PM
by Chaste
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Gas mixture problem: 90% gasoline 10% ethanol BY MASS
|
JDeGra
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11
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296
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November 04, 2009, 11:45:13 AM
by billnotgatez
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|
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ethanoic acid titration
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bindy
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1
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105
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November 04, 2009, 08:51:19 AM
by uq
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miscible substances in castor oil to lower viscosity
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siliboy
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0
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77
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November 04, 2009, 06:02:10 AM
by siliboy
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RAM problem
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ptryon
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2
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120
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November 04, 2009, 03:57:37 AM
by ptryon
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Enthalpy of solution of boric acid
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ii2
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0
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81
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November 04, 2009, 12:19:01 AM
by ii2
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Gases pressure and temperature..
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mr.meeogy
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10
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471
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November 03, 2009, 08:48:13 PM
by Borek
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|
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how to read a volume when collecting a gas over water
|
linds
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5
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149
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November 03, 2009, 02:08:59 PM
by linds
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Molecular Orbital Theory (MOT)
|
Hunt
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14
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1887
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November 03, 2009, 11:06:40 AM
by uq
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Origin of splitting in potential enegy function for the inversion of ammonia
|
garthfluff
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2
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97
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November 03, 2009, 07:34:14 AM
by garthfluff
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Titration of HCl with NaOH
|
psychoNOT
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5
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197
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November 03, 2009, 06:04:48 AM
by psychoNOT
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|
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Help with significant figures
|
bpeck8
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1
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113
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November 03, 2009, 05:48:23 AM
by JDeGra
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|
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Cu(NO3)2 + 2NaI help, please.
|
magician13134
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3
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173
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November 03, 2009, 03:02:52 AM
by magician13134
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Electrons in an excited state
|
Jimmy
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1
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139
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November 02, 2009, 10:59:21 PM
by Dan
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|
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hess's law
|
KitCh
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1
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113
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November 02, 2009, 07:08:46 PM
by orgoclear
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|
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Beer's Law and Concentration help
|
narfarnst
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1
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130
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November 02, 2009, 06:32:03 PM
by Enigma
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Acid Neutralization and General Stoichiometry
|
DeRock
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2
|
153
|
November 02, 2009, 05:41:37 PM
by DeRock
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central atom
|
Luffy
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2
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138
|
November 02, 2009, 10:44:16 AM
by Luffy
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Net Ionic Equations
|
Taylor08
|
3
|
126
|
November 02, 2009, 09:30:23 AM
by Dan
|
|
|
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Density question.
|
bpeck8
|
2
|
117
|
November 02, 2009, 08:26:49 AM
by bpeck8
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|
|
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Reversible reactions
|
Nemesisof99
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0
|
82
|
November 02, 2009, 06:48:07 AM
by Nemesisof99
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|
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DSC curves - linear increase in heat flow?
|
summerfish
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1
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124
|
November 01, 2009, 08:55:43 PM
by Borek
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|
|
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Question on bomb calorimetry
|
erinw88
|
1
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100
|
November 01, 2009, 08:50:41 PM
by Borek
|
|
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Coffee-cup Calorimetry Question
|
erinw88
|
1
|
138
|
November 01, 2009, 08:49:08 PM
by Borek
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|
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Redox
|
pfnm
|
9
|
596
|
November 01, 2009, 08:46:36 PM
by Borek
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Question about column chromatography??
|
arberf
|
0
|
96
|
November 01, 2009, 03:50:16 PM
by arberf
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|
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stoichiometry
|
huskywolf
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2
|
144
|
November 01, 2009, 11:24:18 AM
by huskywolf
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|
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Figuring volume of an stp of gas.....
|
AngelaV
|
1
|
128
|
November 01, 2009, 08:32:03 AM
by Yggdrasil
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|
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Temp. dependance of equilibrium const.
|
Nemesisof99
|
0
|
79
|
November 01, 2009, 06:27:02 AM
by Nemesisof99
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|
|
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Colligative properties
|
thirteennnnn
|
1
|
115
|
November 01, 2009, 01:07:48 AM
by Borek
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|
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Balances On a Mixing Unit
|
RaHaReDeTe
|
1
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95
|
November 01, 2009, 01:03:26 AM
by Borek
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|
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|
important species in a buffer solution
|
aloishis89
|
1
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130
|
October 31, 2009, 11:45:12 PM
by Borek
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|
|
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Question about Ksp
|
odicon
|
1
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107
|
October 31, 2009, 11:42:57 PM
by Borek
|
|
|
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Calorimetry - finding the final temp
|
masteroc
|
3
|
257
|
October 31, 2009, 05:13:22 AM
by masteroc
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|
|
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What causes the peakes?
|
mythicism
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0
|
95
|
October 31, 2009, 02:16:33 AM
by mythicism
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|
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Energy of Interaction of Point Charges
|
FANTASICAL
|
1
|
249
|
October 31, 2009, 01:57:25 AM
by Dan
|
|
|
|
Caffeine solubility in acetone
|
psychoNOT
|
1
|
122
|
October 30, 2009, 10:25:10 PM
by Borek
|
|
|
|
joules to calorie question
|
KitCh
|
8
|
170
|
October 30, 2009, 02:54:21 PM
by KitCh
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|
|
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vapor question
|
butterwings
|
5
|
330
|
October 30, 2009, 06:55:56 AM
by Dan
|
|
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|
Beer's Law, need help finding mass of solution
|
darkryder341
|
2
|
195
|
October 29, 2009, 09:57:08 PM
by Borek
|
|
|
|
Can you help me balance these equations
|
imnotgoodatthis
|
2
|
139
|
October 29, 2009, 09:52:32 PM
by Borek
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|
|
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Calculating heat that is required to convert water to vapor
|
jylxox
|
2
|
214
|
October 29, 2009, 07:11:48 PM
by jylxox
|
|
|
|
Buffer Solutions - Weak Acid&Base or Acid&Salt?
|
cjw2020
|
1
|
111
|
October 29, 2009, 02:48:37 PM
by vhpk
|
|
|
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find Pressure 2 using clausius clapeyron equation
|
miss.strw
|
1
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131
|
October 29, 2009, 02:47:17 PM
by vhpk
|
|
|
|
heat capacity of metals
|
KitCh
|
1
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172
|
October 29, 2009, 07:32:00 AM
by KitCh
|
|
|
|
Vapor pressure statements
|
jylxox
|
1
|
208
|
October 29, 2009, 06:38:52 AM
by Dan
|
|
|
|
Can Ksp Totally Predict Solubility
|
molemole
|
1
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116
|
October 29, 2009, 06:20:46 AM
by AWK
|
|
|
|
minimum density of water propanol solution
|
siliboy
|
1
|
139
|
October 29, 2009, 02:21:21 AM
by Borek
|
|
|
|
Caffeine Extraction Problem
|
fdlink085
|
3
|
176
|
October 29, 2009, 01:30:47 AM
by billnotgatez
|
|
|
|
Balancing Half Reactions
|
WahooMan
|
2
|
187
|
October 28, 2009, 10:02:54 PM
by Borek
|
|
|
|
Enthalpy change for combustion
|
lingojac
|
1
|
155
|
October 28, 2009, 08:16:34 PM
by vhpk
|
|
|
|
Thermodynamics & Acid-base chemistry
|
natalja-anja
|
2
|
180
|
October 28, 2009, 05:45:55 PM
by natalja-anja
|
|
|
|
How do I calculate the PH of a solution of lemon juice + water?
|
thisguyal
|
0
|
123
|
October 28, 2009, 12:36:52 PM
by thisguyal
|
|
|
|
Oxidation Numbers
|
WahooMan
|
1
|
133
|
October 28, 2009, 12:26:41 PM
by Borek
|
|
|
|
Partial Pressure and finding mass.
|
jylxox
|
3
|
232
|
October 28, 2009, 10:54:19 AM
by jylxox
|
|
|
|
Calculate the concentration of substance?
|
helleniq
|
1
|
159
|
October 28, 2009, 10:20:56 AM
by Borek
|
|
|
|
Calculate the weight of Pb consumed? Thanks for helping!
|
helleniq
|
1
|
133
|
October 28, 2009, 10:19:48 AM
by Borek
|
|
|
|
calculate the equilibrium constant fro Nitrogen reaction???
|
helleniq
|
1
|
132
|
October 28, 2009, 10:03:30 AM
by plankk
|
|
|
|
Finding the Ksp value?
|
helleniq
|
0
|
138
|
October 28, 2009, 08:33:32 AM
by helleniq
|
|
|
|
T/F Q's about Quantum Mechanics
|
LoveInQuanta
|
0
|
81
|
October 28, 2009, 07:22:58 AM
by LoveInQuanta
|
|
|
|
Need Help, Specific Heat
|
bpeck8
|
5
|
250
|
October 28, 2009, 07:17:26 AM
by bpeck8
|
|
|
|
Polyelectronic atoms
|
jjkwest1
|
0
|
76
|
October 28, 2009, 06:44:38 AM
by jjkwest1
|
|
|
|
Polar bonds- H2O and CO2
|
maccha
|
3
|
184
|
October 28, 2009, 04:51:27 AM
by Scatter
|
|
|
|
Redox Rxns
|
Jules18
|
1
|
159
|
October 28, 2009, 04:28:02 AM
by lancenti
|
|
|
|
Problem relating gaseous equilibrium constant to Delta S
|
NanoMan
|
1
|
168
|
October 28, 2009, 02:45:46 AM
by Dan
|
|
|
|
Pressure of the system
|
jylxox
|
3
|
195
|
October 27, 2009, 11:27:58 PM
by Borek
|
|
|
|
Can you help me with a homework problem?
|
Doinker
|
3
|
143
|
October 27, 2009, 10:26:34 PM
by Borek
|
|
|
|
Sodium thiosulfate
|
Jules18
|
3
|
164
|
October 27, 2009, 08:30:00 PM
by AWK
|
|
|
|
wavelengths and energy
|
jjkwest1
|
2
|
137
|
October 27, 2009, 06:47:45 PM
by GollumsLunch
|
|
|
|
AsI3
|
Jules18
|
0
|
84
|
October 27, 2009, 12:00:39 PM
by Jules18
|
|
|
|
Methyl group mayhem
|
Shaun1979
|
3
|
172
|
October 27, 2009, 09:47:04 AM
by Dan
|
|
|
|
Multi-subunit protein that cooperatively binds substrate S....
|
Kaytee731
|
0
|
97
|
October 27, 2009, 09:05:12 AM
by Kaytee731
|
|
|
|
Core Electrons
|
Craftylikeafly
|
1
|
200
|
October 27, 2009, 08:39:28 AM
by Dan
|
|
|
|
ideal laws & decomposition
|
jwxie
|
4
|
213
|
October 27, 2009, 06:56:54 AM
by jwxie
|
|
|
|
Question on the synthesis of ylides please help
|
Ciara
|
1
|
146
|
October 27, 2009, 05:04:51 AM
by plankk
|
|
|
|
dilution question
|
stads_29
|
1
|
159
|
October 27, 2009, 05:01:06 AM
by Dan
|
|
|
|
Where to even start?!
|
stads_29
|
4
|
205
|
October 27, 2009, 12:16:15 AM
by stads_29
|
|
|
|
Polarity of a molecule with pentagonal bipyramidal geometry
|
maccha
|
2
|
187
|
October 26, 2009, 10:01:40 PM
by Borek
|
|
|
|
Heat of Combustion : determine amount of O2 and KOH
|
ichigei
|
1
|
133
|
October 26, 2009, 09:43:00 PM
by Borek
|
|
|
|
Lewis structures question
|
maccha
|
2
|
155
|
October 26, 2009, 08:57:36 PM
by AWK
|
|
|
|
balance redox
|
jwxie
|
3
|
178
|
October 26, 2009, 04:32:27 PM
by jwxie
|
|
|
|
calculating equilibrium pressure
|
sjm
|
0
|
101
|
October 26, 2009, 03:08:55 PM
by sjm
|
|
|
|
Why Does Ksp Remain Constant?
|
molemole
|
1
|
139
|
October 26, 2009, 01:57:14 PM
by Borek
|
|
|
|
Energy Relationships
|
Craftylikeafly
|
1
|
144
|
October 26, 2009, 11:32:12 AM
by Arctic-Nation
|
|
|
|
MOVED: ideal to know more physics before studying chem?
|
Dan
|
0
|
99
|
October 26, 2009, 06:51:08 AM
by Dan
|
|
|
|
Condensed electron configurations
|
Craftylikeafly
|
1
|
216
|
October 26, 2009, 06:22:03 AM
by Borek
|
|
|
|
Net Ionic Equations
|
Taylor08
|
1
|
167
|
October 26, 2009, 05:47:12 AM
by AWK
|
|
|
|
Calculating density using temp. and pressure
|
jylxox
|
10
|
286
|
October 26, 2009, 05:26:27 AM
by typhoon2028
|
|
|
|
Elemental Composition of a Binary Mixture
|
FANTASICAL
|
2
|
172
|
October 26, 2009, 03:46:00 AM
by DrCMS
|
|
|
|
Equilibrium Constant
|
hunter457
|
1
|
135
|
October 26, 2009, 12:40:53 AM
by Dan
|
|
|
|
How to calculate molality of a saline solution that contains 175.5 g of NaCl / L
|
farisallil
|
5
|
232
|
October 25, 2009, 10:40:49 PM
by Borek
|
|
|
|
Acid-Base Titration
|
hunter457
|
1
|
180
|
October 25, 2009, 10:08:46 PM
by Borek
|
|
|
|
structure
|
MIA6
|
1
|
112
|
October 25, 2009, 09:19:05 PM
by AWK
|
|
|
|
Homonuclear bond energies
|
Sam1111
|
0
|
82
|
October 25, 2009, 03:35:42 PM
by Sam1111
|
|
|
|
Cell potentials
|
Cret
|
2
|
414
|
October 25, 2009, 02:08:12 PM
by kylatee
|
|
|
|
Couple of questions regarding electrochem
|
kylatee
|
6
|
216
|
October 25, 2009, 01:02:42 PM
by kylatee
|
|
|
|
Esterifcation of 3-methyl-Phenol with 3-Methy-Benzoic Acid??
|
Tgardn21
|
4
|
137
|
October 25, 2009, 11:31:23 AM
by Tgardn21
|
|
|
|
What is the molecular formula for the gas?
|
jylxox
|
7
|
337
|
October 25, 2009, 11:14:31 AM
by Arctic-Nation
|
|
|
|
Non-metals valence shell
|
nanotube
|
2
|
143
|
October 25, 2009, 08:27:06 AM
by cth
|
|
|
|
The emission of radiation with the longest wavelength?
|
cslim
|
2
|
199
|
October 25, 2009, 05:01:35 AM
by cslim
|
|
|
|
Balloon is filled to a volume
|
michelleoruge33
|
1
|
156
|
October 24, 2009, 07:13:11 PM
by billnotgatez
|
|
|
|
find the density of the gas at these new conditions (in grams per liter)
|
KitCh
|
0
|
148
|
October 24, 2009, 05:08:39 PM
by KitCh
|
|
|
|
Ksp/Kf "Concentration needed" problem
|
joxepa
|
1
|
175
|
October 24, 2009, 12:53:20 PM
by Borek
|
|
|
|
Which conditions cause water to become less dence in a gas phase?
|
jylxox
|
3
|
316
|
October 24, 2009, 10:07:05 AM
by BigDeepers
|
|
|
|
Weak Acid Dissociation Help
|
BigDeepers
|
4
|
183
|
October 24, 2009, 09:46:55 AM
by BigDeepers
|
|
|
|
Dilution & complex ion problems!
|
avocado
|
0
|
96
|
October 24, 2009, 09:22:12 AM
by avocado
|
|
|
|
Solution pH Question I just can't seem to figure out.
|
molemole
|
2
|
148
|
October 24, 2009, 09:17:35 AM
by Arctic-Nation
|
|
|
|
Mercury to kilopascales
|
jylxox
|
5
|
240
|
October 24, 2009, 05:45:56 AM
by jylxox
|
|
|
|
Reactions involving gases
|
acej
|
2
|
193
|
October 24, 2009, 03:46:39 AM
by billnotgatez
|
|
|
|
Biochem question help please...
|
stads_29
|
0
|
110
|
October 24, 2009, 03:13:42 AM
by stads_29
|
|
|
|
Keq depends only on temperature
|
nonlinear
|
6
|
348
|
October 24, 2009, 02:59:44 AM
by nonlinear
|
|
|
|
What is the final volume in L?
|
jylxox
|
1
|
183
|
October 23, 2009, 11:45:31 PM
by Dan
|
|
|
|
ionisable groups in ranitidine
|
kri
|
1
|
151
|
October 23, 2009, 11:35:24 PM
by Dan
|
|
|
|
finding the delta h solution
|
choc1022
|
0
|
184
|
October 23, 2009, 03:47:44 PM
by choc1022
|
|
|
|
Gas Question
|
miss.strw
|
3
|
386
|
October 23, 2009, 01:07:48 PM
by The Cancer Curer
|
|
|
|
Calculating Change in Enthalpy and Partial Pressure
|
Boosted55
|
0
|
111
|
October 23, 2009, 12:08:36 PM
by Boosted55
|
|
|
|
Pressure of the gas sample in kiloPascals
|
cloverkissx3
|
8
|
467
|
October 23, 2009, 05:23:34 AM
by JGK
|
|
|
|
pH.//acids and bases
|
laf3ef
|
1
|
186
|
October 22, 2009, 10:30:58 PM
by Borek
|
|
|
|
multi-protic acid titration
|
bkondie09
|
1
|
241
|
October 22, 2009, 09:09:50 PM
by Borek
|
|
|
|
Moles of excess
|
Jules18
|
3
|
211
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October 22, 2009, 08:26:10 AM
by Borek
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kinetic theory model of gases
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miss.strw
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2
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263
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October 22, 2009, 08:18:53 AM
by miss.strw
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calorimetry problem: two samples of water, two known temps, one known vol
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chrisaltman
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1
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194
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October 22, 2009, 07:41:30 AM
by sjb
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CaSi
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Jules18
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6
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220
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October 22, 2009, 06:39:48 AM
by renge ishyo
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thermochemistry bonds
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jjkwest1
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2
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232
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October 22, 2009, 06:38:42 AM
by lancenti
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NMR question
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Synnr01
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3
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203
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October 22, 2009, 06:33:26 AM
by lancenti
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help with heat of formation problems
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shadowshot0
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1
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165
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October 22, 2009, 06:04:21 AM
by lancenti
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phosphorus pentachloride reaction
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hpl912
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1
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161
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October 22, 2009, 05:58:46 AM
by lancenti
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Where to find these articules
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vicshow
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1
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178
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October 22, 2009, 05:45:08 AM
by Borek
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Sites to find textbooks
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vicshow
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1
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143
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October 22, 2009, 05:43:41 AM
by Borek
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help please!!!
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coles96
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1
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157
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October 22, 2009, 05:40:05 AM
by lancenti
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Convert ml to grams for a Heat Capacity and Specific Heat problem, is that possi
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Lin
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4
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291
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October 21, 2009, 11:39:23 PM
by DrCMS
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Some Stoichiometry Issues.
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350chev
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7
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313
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October 21, 2009, 09:39:59 PM
by Borek
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Videos about organic chemistry
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Trevor
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1
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146
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October 21, 2009, 09:24:05 PM
by Borek
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Some stoichiometry
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sveioen
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3
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252
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October 21, 2009, 06:21:36 AM
by Borek
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A basic reaction kinetics question - Please help :(
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weeman75
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3
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244
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October 21, 2009, 05:32:44 AM
by sjb
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Acid-Base Neutralization/Buffers/Saturated Solutions
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FightinTexasAggie
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3
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357
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October 21, 2009, 03:37:08 AM
by Borek
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Naming Equation.
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350chev
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13
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326
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October 20, 2009, 09:43:11 PM
by Borek
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3 quick questions
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ANCF
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7
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234
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October 20, 2009, 08:52:19 PM
by Borek
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Molarity and heat of reaction question
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giayojoseph
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1
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219
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October 20, 2009, 07:39:27 PM
by gregdwulet
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Bond enthalpy and internal energy
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jjkwest1
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3
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313
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October 20, 2009, 05:01:21 PM
by UG
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Combining Metalloids
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Jules18
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0
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97
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October 20, 2009, 03:28:46 PM
by Jules18
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Balance MnO4- + S2- --> MnS + S (Basic)
|
shanthan
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11
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640
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October 20, 2009, 12:45:32 PM
by Borek
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Help
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Harps75
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1
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191
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October 20, 2009, 01:05:23 AM
by cth
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Net Ionic Equation
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molemole
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1
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201
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October 19, 2009, 08:05:24 PM
by AWK
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Enthalpy Question!!!
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unamateo_17
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1
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214
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October 19, 2009, 01:11:37 PM
by Borek
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moles
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choc1022
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1
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160
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October 19, 2009, 01:09:06 PM
by Borek
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Fundamental chemistry question
|
Bassaml7
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1
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157
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October 19, 2009, 11:04:51 AM
by Arctic-Nation
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interionic and intermolecular forces ( i showed work)
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michelleoruge33
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1
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164
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October 19, 2009, 10:54:58 AM
by Arctic-Nation
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First order reaction.
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CandyApples
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1
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166
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October 19, 2009, 10:30:16 AM
by renge ishyo
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de broglie
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u0625552
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1
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174
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October 19, 2009, 10:17:46 AM
by Arctic-Nation
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Calculating volume of a reaction mixture
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jhill4603
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3
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264
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October 19, 2009, 10:06:50 AM
by Borek
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heat and enthalpy
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u0625552
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2
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192
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October 19, 2009, 09:37:51 AM
by u0625552
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pH predicitons
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molemole
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1
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125
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October 19, 2009, 08:29:05 AM
by sjb
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Pure liquid octane is used as the fuel in...
|
lou_skywalker
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6
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346
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October 19, 2009, 07:23:07 AM
by lou_skywalker
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Chemical equations and finding out which one is more or less reactive?
|
ErinNicole8
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1
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176
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October 19, 2009, 07:21:21 AM
by sjb
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Is this true?
|
ridwan192
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1
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148
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October 19, 2009, 05:29:05 AM
by DrCMS
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bond length and bond dissociation energy
|
lorna639
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0
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167
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October 18, 2009, 09:46:42 PM
by lorna639
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Need major help please
|
bpeck8
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6
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224
|
October 18, 2009, 09:29:21 PM
by Borek
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heat of vaporization
|
scottybud
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1
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239
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October 18, 2009, 09:22:23 PM
by Borek
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Electron Spin
|
Jimmy
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1
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153
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October 18, 2009, 09:19:25 PM
by Borek
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Acid Neutralization Capacity
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billy maize
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1
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164
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October 18, 2009, 09:16:40 PM
by Borek
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Solute/Solvent/Boiling point question.. confused & desperate...
|
odicon
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1
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168
|
October 18, 2009, 09:15:20 PM
by Borek
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Need help with Chemistry Titration Problem :(
|
OasisJuice
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3
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195
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October 18, 2009, 09:13:45 PM
by Borek
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Calculating ΔHrxn
|
doxasikyrie
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1
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162
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October 18, 2009, 09:12:35 PM
by Borek
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Hess's Law
|
Craftylikeafly
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1
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178
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October 18, 2009, 09:11:08 PM
by Borek
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Why is SO2Cl2 polar?
|
maccha
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1
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244
|
October 18, 2009, 09:02:20 PM
by Dan
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Henry's Law and solubility Q's
|
NanoMan
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2
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213
|
October 18, 2009, 02:41:22 PM
by NanoMan
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lipid bilayer questions (thnks!)
|
butterwings
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0
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142
|
October 18, 2009, 12:01:48 PM
by butterwings
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Rates of Reaction
|
Innovatek
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0
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87
|
October 18, 2009, 11:38:58 AM
by Innovatek
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Gasses Charles Law
|
Moz
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3
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132
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October 18, 2009, 10:28:52 AM
by Moz
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|
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Lewis diagrams and perspective drawings
|
maccha
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1
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168
|
October 18, 2009, 10:11:00 AM
by sjb
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|
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Calculate ΔHrxn from two equations?
|
lou_skywalker
|
2
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227
|
October 18, 2009, 09:45:31 AM
by lou_skywalker
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|
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wavelengths for Cr and Fe (emission spectra)
|
ridwan192
|
1
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157
|
October 18, 2009, 09:16:22 AM
by Dawson
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Lewis dot diagram for NO2+ molecule
|
maccha
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4
|
946
|
October 18, 2009, 08:13:29 AM
by maccha
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|
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|
Help with titration/redox question
|
zerobladex
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1
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152
|
October 18, 2009, 05:57:25 AM
by Borek
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|
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2-bromo-2-hydroxypropionic acid ???
|
celestia
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2
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183
|
October 18, 2009, 01:56:17 AM
by Dan
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help with theenthapy(specific heat of water)
|
skdjk200
|
1
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150
|
October 17, 2009, 10:56:37 PM
by Borek
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Periodic Properties. Oraganize form smallest ionic/atomic radius to largest.
|
nightowl1
|
1
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208
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October 17, 2009, 03:59:55 PM
by Yggdrasil
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Hydrometallurgy and analyzing a Chromite sample
|
Dawson
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0
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610
|
October 17, 2009, 03:19:11 PM
by Dawson
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Thermochemistry
|
jjkwest1
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7
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355
|
October 17, 2009, 12:01:23 PM
by Borek
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Molecular Formula
|
350chev
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2
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186
|
October 17, 2009, 08:34:25 AM
by 350chev
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|
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Does group theory accurately predict the actual vibration of molecules?
|
Chaste
|
0
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99
|
October 16, 2009, 05:41:52 PM
by Chaste
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Moles and Molecules
|
anon13
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1
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165
|
October 16, 2009, 03:56:11 PM
by Schrödinger
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balancing and equation, net ionic ionic molecular, and mass
|
Beachgirl
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1
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165
|
October 16, 2009, 03:49:19 PM
by UG
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Hess's Law explanation please need help
|
sam12103
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2
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412
|
October 16, 2009, 03:39:55 PM
by UG
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I hav a few questions like two for chemistry plz help
|
Kambleh
|
1
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154
|
October 16, 2009, 05:14:36 AM
by JGK
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|
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What is the difference between reaction rate and rate constant?
|
odicon
|
1
|
204
|
October 16, 2009, 03:42:59 AM
by Schrödinger
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question about writing chemical equations
|
KitCh
|
2
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168
|
October 15, 2009, 11:18:53 AM
by Arctic-Nation
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Bond angle Problem
|
butterwings
|
4
|
473
|
October 15, 2009, 04:46:58 AM
by butterwings
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gas law ques
|
tushar_enchanter
|
1
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189
|
October 14, 2009, 11:26:02 PM
by Borek
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qualitative analysis of Zn2+
|
Staccato10
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2
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198
|
October 14, 2009, 11:04:18 PM
by tushar_enchanter
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Simple dilutions question
|
Dae
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2
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215
|
October 14, 2009, 09:01:15 PM
by Borek
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Solubilities regarding salicylic acid
|
djiang87
|
1
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179
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October 14, 2009, 12:58:26 PM
by Borek
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|
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Chemical reactions/acid base reactions help on questions i got wrong, please
|
sam12103
|
2
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266
|
October 14, 2009, 12:23:59 PM
by djiang87
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|
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Gravimetric Analysis of Scrap Silver
|
koolflair
|
2
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203
|
October 14, 2009, 11:32:32 AM
by typhoon2028
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|
|
|
HF not ionic?
|
Jules18
|
5
|
374
|
October 14, 2009, 09:53:02 AM
by kimyacı
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|
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How to find chiral atoms in ring structures
|
sveioen
|
1
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247
|
October 13, 2009, 08:03:12 AM
by Arctic-Nation
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|
|
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Speed Distribution Question?
|
vcolts18
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1
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168
|
October 12, 2009, 09:23:07 PM
by Borek
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rate of effusion problem
|
jjkwest1
|
1
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292
|
October 12, 2009, 09:15:11 PM
by Borek
|
|
|
|
help solving this problem (finding the number of molecules)
|
KitCh
|
3
|
224
|
October 12, 2009, 07:45:12 PM
by sjb
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|
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|
Oxidation Numbers
|
Taylor08
|
1
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288
|
October 12, 2009, 12:24:38 PM
by Borek
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|
|
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Lab involving the preparation of Buffers
|
molemole
|
1
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188
|
October 12, 2009, 12:14:53 PM
by renge ishyo
|
|
|
|
Balancing Chemical Reactions
|
misz_m
|
1
|
178
|
October 12, 2009, 12:03:08 PM
by renge ishyo
|
|
|
|
how to express 2.067 ppm as a percentage
|
derek0o0
|
6
|
228
|
October 12, 2009, 09:42:30 AM
by derek0o0
|
|
|
|
Calculate the equilibrium constant
|
Shaun1979
|
4
|
223
|
October 12, 2009, 09:04:51 AM
by Shaun1979
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|
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|
Equilibrium Constants w/Coefficients Multiplied by a Common Factor
|
LoveInQuanta
|
0
|
133
|
October 12, 2009, 08:39:27 AM
by LoveInQuanta
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|
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|
Partial Pressure problem
|
asteele71
|
1
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189
|
October 12, 2009, 05:54:38 AM
by Schrödinger
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|
|
|
wavelength problem - electron going from n= 5 to n = 2
|
nightowl1
|
3
|
363
|
October 12, 2009, 01:13:56 AM
by Borek
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|
|
Simple stoich problem. Can't finish it. :(
|
nightowl1
|
12
|
286
|
October 11, 2009, 11:35:56 PM
by nightowl1
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|
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|
Pharmacokinetics
|
djiang87
|
2
|
177
|
October 11, 2009, 04:04:52 PM
by djiang87
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|
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Enthalpy
|
julcae87
|
2
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201
|
October 11, 2009, 02:22:38 PM
by julcae87
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|
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|
molecular geometry Ques of " ICl3
|
butterwings
|
14
|
436
|
October 11, 2009, 01:28:27 PM
by cth
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|
|
|
Thermodynamics/Thermochemistry help 2 Questions I am struggling with
|
sam12103
|
1
|
234
|
October 11, 2009, 12:19:43 PM
by Yggdrasil
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|
|
|
How does one calculate Partial Pressure given M, V, Temp, t?
|
asteele71
|
3
|
277
|
October 11, 2009, 10:31:31 AM
by Borek
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|
|
|
limiting reactant help
|
KitCh
|
2
|
252
|
October 11, 2009, 09:19:12 AM
by KitCh
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|
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reacting two metals (one a solid, another auqeous solution)
|
ridwan192
|
2
|
168
|
October 11, 2009, 05:06:54 AM
by ridwan192
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|
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Acidic flux/ Basic compound
|
Nemesisof99
|
7
|
354
|
October 11, 2009, 01:33:35 AM
by Borek
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|
|
|
Roman Numeral Compound Names.
|
350chev
|
7
|
398
|
October 10, 2009, 11:19:22 PM
by sjb
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|
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Balancing Equations and a little math.
|
Kemiv
|
1
|
189
|
October 10, 2009, 11:01:14 PM
by Borek
|
|
|
|
chem problem please help (gas problem)
|
jjkwest1
|
1
|
199
|
October 10, 2009, 10:57:25 PM
by Borek
|
|
|
|
Percent by Weight
|
jmg808
|
1
|
173
|
October 10, 2009, 10:45:14 PM
by Borek
|
|
|
|
Calculating %
|
350chev
|
14
|
371
|
October 10, 2009, 10:40:46 PM
by Borek
|
|
|
|
Problems with mass % and calculations.
|
350chev
|
11
|
301
|
October 10, 2009, 06:44:30 PM
by UG
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|
|
|
precision and accuracy
|
maka09
|
1
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240
|
October 10, 2009, 03:38:57 PM
by anon13
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|
|
|
Oxidation numbers- *why* am I getting this problem wrong?
|
Kalibasa
|
4
|
310
|
October 10, 2009, 10:10:17 AM
by Kalibasa
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|
|
|
Lewis Structure of Chlorine Nitrate
|
renia45
|
0
|
290
|
October 10, 2009, 07:06:08 AM
by renia45
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|
|
|
predicting oxidation states
|
nightowl1
|
0
|
120
|
October 10, 2009, 01:25:01 AM
by nightowl1
|
|
|
|
Practical chemistry: question adaptors for water taps
|
inhumain
|
0
|
147
|
October 09, 2009, 11:42:16 PM
by inhumain
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|
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Calc. entropy
|
Nemesisof99
|
0
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127
|
October 09, 2009, 10:45:55 PM
by Nemesisof99
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|
|
|
Help with molar ratio.
|
Raafiq
|
1
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201
|
October 09, 2009, 06:39:35 PM
by plankk
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|
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environmental chem - concentration @ steady state
|
helpimdiene
|
0
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137
|
October 09, 2009, 01:42:27 PM
by helpimdiene
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|
|
|
Finding an Unknown Element
|
MakoEyes
|
6
|
458
|
October 09, 2009, 12:17:15 PM
by billnotgatez
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|
|
|
Final temperature of water after ice is dropped in
|
Jegland
|
2
|
274
|
October 09, 2009, 11:34:16 AM
by Jegland
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|
|
|
Enthalpy
|
u0625552
|
1
|
248
|
October 09, 2009, 08:14:23 AM
by Yggdrasil
|
|
|
|
questions involving wavelengths and dissociation
|
pistaciolow
|
5
|
387
|
October 09, 2009, 02:53:53 AM
by pistaciolow
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|
|
|
Voltaic cell
|
chrissy
|
1
|
182
|
October 09, 2009, 02:11:15 AM
by Dan
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|
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|
2H2 and O2 Gas from water
|
Polosky
|
3
|
223
|
October 08, 2009, 05:11:04 PM
by billnotgatez
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|
|
|
Finding the initial rate.
|
JonnyDoe
|
1
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173
|
October 08, 2009, 04:02:36 PM
by JonnyDoe
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|
|
|
Why are all atoms in constant motion?
|
dolimitless
|
0
|
129
|
October 08, 2009, 03:19:34 PM
by dolimitless
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|
|
|
Electron Question for peroxide
|
miss.strw
|
2
|
220
|
October 08, 2009, 10:16:53 AM
by miss.strw
|
|
|
|
Acid-Base Eqilibria
|
Taylor08
|
1
|
160
|
October 08, 2009, 05:49:04 AM
by plankk
|
|
|
|
Using Bond Energies to Calculate ΔH°rxn
|
pistaciolow
|
7
|
295
|
October 08, 2009, 05:29:18 AM
by pistaciolow
|
|
|
|
Electroplating of Copper on Silicon substrate
|
peppypepzz
|
0
|
112
|
October 07, 2009, 10:07:39 PM
by peppypepzz
|
|
|
|
Hello everyone new guy here
|
rollusd7
|
1
|
176
|
October 07, 2009, 09:28:53 PM
by Borek
|
|
|
|
Please help about Phosphorus
|
steamy
|
1
|
151
|
October 07, 2009, 09:08:16 PM
by Borek
|
|
|
|
Help with volume problem
|
WalidMarshall
|
1
|
244
|
October 07, 2009, 04:46:43 PM
by Ak
|
|
|
|
Limiting Reagent Question
|
Kipper
|
1
|
193
|
October 07, 2009, 12:46:31 PM
by UG
|
|
|
|
Conversion
|
orgoclear
|
12
|
475
|
October 07, 2009, 08:25:35 AM
by sjb
|
|
|
|
Stumped on nearly finished titration problem
|
molemole
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4
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170
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October 07, 2009, 06:54:27 AM
by molemole
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Question regarding x is small assumption.
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molemole
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6
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296
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October 07, 2009, 06:05:27 AM
by molemole
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can L-ascorbic acid reduce gold from 3+ to 0 charge?
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nf405
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0
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132
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October 07, 2009, 12:33:44 AM
by nf405
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pH, pKa problem has me stumped!!
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bolts4life43
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1
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278
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October 06, 2009, 10:13:10 PM
by Borek
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Ammonia is causing air bubbles in dental stone and I need it neutralized
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jsbaldwin89
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1
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169
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October 06, 2009, 09:18:50 PM
by Borek
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Net Ionic Eq'n
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Jules18
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1
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188
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October 06, 2009, 07:26:56 PM
by AWK
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balance chemical reaction acidic solution
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jazz20
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1
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199
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October 06, 2009, 07:19:58 PM
by AWK
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Need some Help on a problem
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bpeck8
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5
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229
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October 06, 2009, 04:51:22 PM
by bpeck8
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Please help me step by step with this Thermodynamic homework problem
|
WalidMarshall
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1
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198
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October 06, 2009, 04:22:13 PM
by Yggdrasil
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Angle between two vectors
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G O D I V A
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2
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290
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October 06, 2009, 11:35:25 AM
by cth
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Finding grams of Oxygen based on 4.76x10^22 molecules of SiO2
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Kipper
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1
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194
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October 06, 2009, 11:10:27 AM
by Arctic-Nation
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Calculating ΔH
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pkeller
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4
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243
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October 06, 2009, 05:09:57 AM
by pkeller
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Octet rule
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butterwings
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3
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253
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October 06, 2009, 04:48:34 AM
by DrCMS
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X-ray Diffraction Question
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G O D I V A
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2
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166
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October 06, 2009, 04:20:03 AM
by G O D I V A
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Crystal structure question
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G O D I V A
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2
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223
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October 06, 2009, 04:18:29 AM
by G O D I V A
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Weird organic chemistry reaction...
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0rion
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4
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246
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October 06, 2009, 02:47:26 AM
by DrCMS
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Le Chatelier's Question
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molemole
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2
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168
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October 06, 2009, 12:15:44 AM
by molemole
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Which of the following compounds are best described using resonance structures ?
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miss.strw
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1
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163
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October 05, 2009, 10:33:13 PM
by Dan
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Bond Angles for Hydronium
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kaylaalicia
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2
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176
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October 05, 2009, 10:06:19 PM
by sjb
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Frequency and Wavelength
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nupatel87
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1
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187
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October 05, 2009, 05:43:39 PM
by Yggdrasil
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Homework
|
samiou6
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2
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201
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October 05, 2009, 02:18:39 PM
by samiou6
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buffer question, YEP another one.
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Beatle
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2
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152
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October 05, 2009, 01:58:53 PM
by Beatle
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Using average bond enthalpy values estimate ΔH (kJ/mol)
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miss.strw
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1
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330
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October 05, 2009, 12:25:12 PM
by UG
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2 Experiments: 1 combustion, 1 mass %, determine emp. formula??
|
chrisaltman
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2
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222
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October 05, 2009, 06:17:09 AM
by chrisaltman
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half reaction for reduction of gold
|
Skullmonkee
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0
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135
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October 04, 2009, 10:56:41 PM
by Skullmonkee
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Lab report schiff base + ligand, NMR, IR, UV-Vis analysis, a few queries...
|
undergraduating
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5
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181
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October 04, 2009, 09:54:04 PM
by undergraduating
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acid & base
|
jwxie
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2
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183
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October 04, 2009, 09:14:55 PM
by Borek
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Using Ka vs Kb
|
cjw2021
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2
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279
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October 04, 2009, 09:12:07 PM
by Borek
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Chem HW question(s) Help please!!!
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vdub11
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1
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164
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October 04, 2009, 09:03:07 PM
by Borek
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Adding Heat to Exothermic Reaction
|
momento
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1
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207
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October 04, 2009, 08:59:04 PM
by Borek
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ok so im super confused with my homework
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mlagez
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6
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222
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October 04, 2009, 08:53:31 PM
by Borek
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Please help me find elements given only the charge and the atomic mass
|
UOstudent1016
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3
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177
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October 04, 2009, 08:45:12 PM
by sjb
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folin ciocalteu-phenol complexation
|
marsh
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0
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95
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October 04, 2009, 04:07:28 PM
by marsh
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Need help solving problems
|
bpeck8
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4
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226
|
October 04, 2009, 01:19:17 PM
by bpeck8
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molar mass
|
mamulya1
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1
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154
|
October 04, 2009, 08:13:32 AM
by Arctic-Nation
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Which of the following compounds can exist as cis and trans isomers ?
|
miss.strw
|
3
|
399
|
October 04, 2009, 08:09:51 AM
by Arctic-Nation
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mole problem
|
mamulya1
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1
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182
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October 04, 2009, 07:45:05 AM
by sjb
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True statements about the above molecule?
|
butterwings
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4
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173
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October 04, 2009, 06:37:51 AM
by butterwings
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Stoicheometry Help
|
GWashington1732
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8
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322
|
October 04, 2009, 05:27:23 AM
by GWashington1732
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imines and aldimes question.
|
Beatle
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3
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215
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October 04, 2009, 01:56:45 AM
by Beatle
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Bonding energy question (why is this like this)?
|
G O D I V A
|
4
|
255
|
October 03, 2009, 03:11:25 PM
by renge ishyo
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Bond lengths for single bonds
|
SheffieldWednesday4ever
|
1
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206
|
October 03, 2009, 08:28:20 AM
by kimyacı
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|
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Biochemical Buffers
|
Dae
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3
|
255
|
October 03, 2009, 07:00:17 AM
by Borek
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net ionic equation of lead(II) nitrate(aq) plus Zinc(s)
|
lou_skywalker
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2
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294
|
October 03, 2009, 04:04:21 AM
by lou_skywalker
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reactibility of metal oxide plus heat
|
lou_skywalker
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2
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232
|
October 03, 2009, 04:02:25 AM
by lou_skywalker
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|
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molarity of aqueous solutions
|
thealissa
|
2
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216
|
October 02, 2009, 08:27:54 PM
by thealissa
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Calculating the Ionization Energy
|
renia45
|
4
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429
|
October 02, 2009, 12:59:01 PM
by renia45
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|
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About Salt Superoxides
|
zerobladex
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1
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190
|
October 02, 2009, 07:37:50 AM
by kimyacı
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|
d d ...degenrate?
|
ptryon
|
3
|
247
|
October 01, 2009, 09:56:18 PM
by ptryon
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XFn + S ---> SF6 Find X and n, the rest of the data inside
|
shanthan
|
1
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212
|
October 01, 2009, 09:37:57 PM
by Borek
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Lewis structure of the SeF (Is this right?)
|
miss.strw
|
1
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216
|
October 01, 2009, 09:24:34 PM
by cth
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(Multiple Choice) The Lewis Structure that contains a multiple bond???
|
zerox0o
|
3
|
308
|
October 01, 2009, 09:20:53 PM
by Borek
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Liquidus curves and ideal liquid solutions
|
ursulan
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0
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199
|
October 01, 2009, 08:43:33 PM
by ursulan
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|
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Nonpolar solutes and solubility in water
|
Alicia T.
|
0
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267
|
October 01, 2009, 06:34:47 PM
by Alicia T.
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|
Chopping Wood! Exothermic or Endothermic!
|
LoveInQuanta
|
1
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235
|
October 01, 2009, 06:13:49 PM
by renge ishyo
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|
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Equilibrium Problem
|
LoveInQuanta
|
4
|
218
|
October 01, 2009, 01:32:10 PM
by LoveInQuanta
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|
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|
Buffers question
|
klasnikov
|
1
|
199
|
October 01, 2009, 01:17:29 PM
by Borek
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|
|
|
Question about C2Cl4 (PLEASE!!!)
|
zerox0o
|
3
|
185
|
October 01, 2009, 11:24:11 AM
by zerox0o
|
|
|
|
what is the shape of OH2-?
|
bb
|
4
|
218
|
October 01, 2009, 05:33:35 AM
by cth
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|
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|
Ferrocenium cation
|
-Rhodesia-
|
1
|
201
|
October 01, 2009, 05:21:05 AM
by Rudi
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MOVED: flowrate
|
Borek
|
0
|
105
|
September 30, 2009, 09:18:56 PM
by Borek
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Excess Reagent problem
|
nupatel87
|
13
|
333
|
September 30, 2009, 08:12:48 PM
by AWK
|
|
|
|
Solubility Rules
|
Jules18
|
0
|
205
|
September 30, 2009, 12:28:17 PM
by Jules18
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|
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Oxidation & Reduction (in cellular resp.)
|
Jules18
|
7
|
311
|
September 30, 2009, 11:07:00 AM
by azmanam
|
|
|
|
Lead nitrate - soluble?
|
Jules18
|
2
|
299
|
September 30, 2009, 10:48:56 AM
by Jules18
|
|
|
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Titration, weak unknown acid with strong base! Help please..
|
SaraW
|
15
|
454
|
September 30, 2009, 09:27:22 AM
by Borek
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|
|
|
Using electron configurations to find number of inner electrons
|
pistaciolow
|
0
|
210
|
September 30, 2009, 09:25:08 AM
by pistaciolow
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|
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|
Chemical Kinetics
|
Taylor08
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1
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173
|
September 30, 2009, 08:01:06 AM
by MrTeo
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|
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|
Need urgent help with Ca(H2PO4)2.2H2O
|
PeterDD
|
3
|
272
|
September 30, 2009, 03:20:19 AM
by DrCMS
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|
|
|
Volume of a Bacterial Cell is 2.54^3 micrometers. What is the volume of 10^5
|
chrisaltman
|
5
|
280
|
September 30, 2009, 02:24:36 AM
by Borek
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|
|
|
Separation of nanopartices ( my final year project)
|
goodboy268
|
1
|
196
|
September 29, 2009, 10:38:58 PM
by goodboy268
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|
|
|
Why is NH4Cl ionic?
|
maccha
|
1
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352
|
September 29, 2009, 09:49:00 PM
by Dan
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|
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electrochem
|
Tucker_16
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1
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193
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September 29, 2009, 09:15:34 PM
by Borek
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|
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|
Net ionic equation for redox reaction
|
lou_skywalker
|
7
|
494
|
September 29, 2009, 09:11:57 PM
by Borek
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|
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|
Ion Exchange Chromotography (Molarity and Chemical Equations)
|
admeaz0123
|
1
|
283
|
September 29, 2009, 08:57:30 PM
by Borek
|
|
|
|
What is the initial rate of reaction
|
gapeachksu
|
3
|
317
|
September 29, 2009, 08:38:28 PM
by sjb
|
|
|
|
Buffers and Molarity
|
Markyeo
|
1
|
201
|
September 29, 2009, 10:52:59 AM
by Borek
|
|
|
|
number of sigma and pi bonds in dichloroethylene or CH2CCl2?
|
bb
|
1
|
288
|
September 29, 2009, 10:35:28 AM
by cth
|
|
|
|
Resonance structures - Nitrogen vs Oxygen
|
SheffieldWednesday4ever
|
3
|
351
|
September 29, 2009, 04:48:31 AM
by cyborgarm
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|
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electron configurations
|
miss.strw
|
3
|
209
|
September 28, 2009, 08:43:33 PM
by Borek
|
|
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Need help understanding how products are formed
|
bpeck8
|
1
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232
|
September 28, 2009, 04:54:57 PM
by bpeck8
|
|
|
|
Periodic table question (What did I do wrong?!)
|
miss.strw
|
6
|
224
|
September 28, 2009, 03:20:35 PM
by UG
|
|
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(Is this right?) Computer Electron Configurations Question : different one
|
miss.strw
|
2
|
179
|
September 28, 2009, 02:50:42 PM
by miss.strw
|
|
|
|
True facts about Main-group elements?
|
zerox0o
|
2
|
281
|
September 28, 2009, 02:41:14 PM
by miss.strw
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|
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|
Gravimetric Detmination
|
choc1022
|
2
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178
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September 28, 2009, 12:41:29 PM
by choc1022
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|
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|
Moecular Formula
|
hidef06
|
1
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211
|
September 28, 2009, 07:06:37 AM
by Fridushka
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|
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|
Identifying lone pairs in the molecular orbital of Nitrogen gas
|
cooltales
|
4
|
394
|
September 28, 2009, 05:37:46 AM
by cooltales
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|
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Coordination Geometry
|
mgbee
|
1
|
253
|
September 27, 2009, 11:26:54 PM
by cth
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|
|
|
Number of O atoms in .037g CuSO4*5H20
|
Princezz3286
|
1
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229
|
September 27, 2009, 09:31:02 PM
by Borek
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|
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% recovery of a mixture
|
hsucellmolstudent
|
1
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205
|
September 27, 2009, 09:27:27 PM
by Borek
|
|
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|
Carbonic acid dissociation
|
Jules18
|
2
|
254
|
September 27, 2009, 09:20:48 PM
by Borek
|
|
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Mass of Precipitate Question
|
Princezz3286
|
3
|
391
|
September 27, 2009, 08:21:48 PM
by Princezz3286
|
|
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|
solublility vs solubility product
|
baby
|
7
|
493
|
September 27, 2009, 06:33:41 PM
by MrTeo
|
|
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|
Electrolytes
|
Jules18
|
3
|
223
|
September 27, 2009, 04:11:26 PM
by nj_bartel
|
|
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|
Stoichiometry Problem
|
Jimmy
|
16
|
467
|
September 27, 2009, 02:52:28 PM
by Jimmy
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|
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|
Is there a catalyst for the reaction of acetic acid and sodium bicarbonate?
|
Zen00
|
3
|
265
|
September 27, 2009, 09:42:26 AM
by Borek
|
|
|
|
Using the Heisenberg Uncertainty Principle
|
pistaciolow
|
2
|
311
|
September 27, 2009, 09:09:11 AM
by pistaciolow
|
|
|
|
Carbon in Kg and CO2 in ppm
|
Maharg
|
0
|
169
|
September 27, 2009, 07:14:21 AM
by Maharg
|
|
|
|
isomers
|
vorspiel
|
1
|
205
|
September 26, 2009, 08:58:49 PM
by cliverlong
|
|
|
|
Bond strength of sp orbital in contrast to sp3 orbital
|
SheffieldWednesday4ever
|
1
|
251
|
September 26, 2009, 08:20:17 PM
by renge ishyo
|
|
|
|
nernst equation
|
indietro
|
0
|
157
|
September 26, 2009, 03:21:11 PM
by indietro
|
|
|
|
Having some problems on my Chemical Engineering homework
|
ultima_5
|
0
|
139
|
September 26, 2009, 12:30:39 PM
by ultima_5
|
|
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|
Balance Redox
|
aneeq
|
1
|
222
|
September 26, 2009, 09:01:21 AM
by Borek
|
|
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|
Theoretical yield in ester hydrolysis
|
thingy
|
7
|
490
|
September 26, 2009, 01:02:25 AM
by UG
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|
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|
Tin(II) chloride
|
-Rhodesia-
|
7
|
394
|
September 25, 2009, 11:01:05 PM
by Borek
|
|
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|
Compound purity
|
SheffieldWednesday4ever
|
1
|
184
|
September 25, 2009, 01:38:51 PM
by Borek
|
|
|
|
Why do more electronegative atoms have lower-energy orbitals?
|
Kalibasa
|
0
|
161
|
September 25, 2009, 12:35:56 PM
by Kalibasa
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|
|
|
Dimensional analysis
|
Confuzzled
|
3
|
186
|
September 25, 2009, 12:15:27 PM
by DrCMS
|
|
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|
Help with H2o hydrogen separation.
|
opinionated1
|
0
|
157
|
September 25, 2009, 11:23:26 AM
by opinionated1
|
|
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|
volume of gas at STP given only mol% of contained compounds and total gas mass
|
steam03
|
2
|
283
|
September 25, 2009, 08:44:09 AM
by steam03
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|
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|
pH of a monobasic salt
|
MrTeo
|
7
|
373
|
September 25, 2009, 08:30:39 AM
by MrTeo
|
|
|
|
Inert Metal?
|
Jules18
|
6
|
436
|
September 24, 2009, 09:02:02 AM
by 408
|
|
|
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Buffer
|
Ak
|
5
|
278
|
September 24, 2009, 04:48:02 AM
by Borek
|
|
|
|
Nitric Oxide ?
|
Jules18
|
1
|
174
|
September 23, 2009, 04:58:08 PM
by Ak
|
|
|
|
Conversion Questions
|
DividebyZero
|
1
|
204
|
September 23, 2009, 10:22:53 AM
by Borek
|
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