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Problem of the Week Archive

Collection of all our problem of the week threads.

667 Posts
57 Topics
Last post by Borek
in Re: Not a problem of the...
on November 19, 2017, 12:34:32 AM
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Stoichiometry calculator Borek 3 23851 Last post December 31, 2018, 08:39:30 AM
by wildfyr
caesium-133 duuude 0 2412 Last post March 18, 2007, 05:42:01 AM
by duuude
Electrolysis Violet89 2 1798 Last post May 08, 2013, 04:59:45 PM
by iamback
(Preparation of solutions and dilutions) tm975 4 3297 Last post February 28, 2012, 09:48:57 PM
by Borek
A 0.50 mol sample of oxygen gas is confined a 0° C in a cylinder. The initial p Bjc51192 1 5480 Last post March 08, 2011, 05:00:33 PM
by opti384
A 35.0mL sample of 0.150M Acetic Acid is titrated with 0.150M NaOH solution. unsavedhero 9 7067 Last post March 16, 2014, 11:14:55 PM
by DrCMS
AAS prac sample prep question PaintYourFuture 2 1839 Last post March 30, 2012, 07:51:48 PM
by PaintYourFuture
Atomic Mass Question dshipp17 2 1468 Last post June 11, 2017, 11:36:21 AM
by dshipp17
buffer solution Ibin-Huan 2 1936 Last post July 03, 2012, 09:03:46 AM
by Borek
Chemical reactions/acid base reactions help on questions i got wrong, please sam12103 2 3365 Last post October 14, 2009, 12:23:59 PM
by djiang87
Condensation Polymerisation help, question in description mynameisbobbyj 6 2860 Last post May 12, 2012, 11:13:11 PM
by Borek
Coordination Polymerisation Clanouper 0 1005 Last post November 06, 2014, 09:28:46 PM
by Clanouper
describing bond between elements.. transgalactic 4 3696 Last post January 28, 2009, 12:58:24 PM
by TheJoker
Does heating water to say 50 degrees celcius make it more acidic or more basic? jubba 7 8937 Last post September 19, 2005, 11:14:14 AM
by charco
electrochemistry question i need help with portugal 5 1995 Last post August 25, 2007, 09:45:04 PM
by Borek
electronic config represents elements that would have similar properties samiam 1 2784 Last post January 17, 2010, 01:48:10 PM
by Ligander
Equilibrium Constant from Ksp / Kf / Ka thisisvik 1 9721 Last post August 09, 2008, 01:14:05 PM
by Yggdrasil
Find the heat of AgCl formation long-live-mercutio 8 1636 Last post November 15, 2017, 03:16:01 AM
by long-live-mercutio
Finding Equilibrium Concentrations from Initial Concentrations n equi constant zainish 3 5577 Last post February 27, 2012, 10:34:46 PM
by Borek
For rate equations, are AB+A vs 2A+B vs A2+B equivalent? K-Feldspar 3 1870 Last post January 20, 2018, 03:57:05 PM
by K-Feldspar
Gas molar fraction problem Guitrz 4 1269 Last post April 12, 2018, 08:37:46 AM
by Enthalpy
Gravimetric Analysis -- One Component VanKwisH 4 5587 Last post January 23, 2010, 10:05:38 PM
by Borek
Gravimetric Determination of Sulfate Troubleshooting n2ro 1 1327 Last post October 22, 2014, 12:17:34 PM
by Borek
green solution antimatter101 5 2578 Last post January 04, 2013, 09:15:36 AM
by kaliaden
Hanovia type photoreactor polik25 0 1807 Last post March 31, 2012, 06:44:55 AM
by polik25
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