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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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0 Members and 67 Guests are viewing this board.
Stoichiometry calculator Borek 2 19706 Last post January 06, 2015, 04:01:01 AM
by Borek
How convert mol % to wt%?? ikkjkhhgs 9 342 Last post June 15, 2018, 06:01:09 AM
by mjc123
Probability density mohaah2 4 245 Last post June 14, 2018, 01:44:58 PM
by mohaah2
Sig Figs, Volumetric Flask Tolerance, What? How? Who? Cracked_Flask75 2 152 Last post June 14, 2018, 12:07:39 PM
by Cracked_Flask75
vacuum tubing diameter ? minibeep 2 132 Last post June 13, 2018, 11:53:02 PM
by clarkstill
Uses of metal-acid salt vs acid? pcm81 3 278 Last post June 13, 2018, 06:24:06 AM
by Babcock_Hall
Why deposit gold nanoparticles onto a gold electrode? HJay 1 143 Last post June 12, 2018, 02:54:10 AM
by wildfyr
Did our prof. get this wrong? [electrochemistry] Bor 3 228 Last post June 11, 2018, 09:06:14 PM
by Borek
Hydrogen bonding between alcohols and SiO2 (sillicon dioxide)? Adityax26 4 397 Last post June 07, 2018, 08:04:43 AM
by Enthalpy
Second analytical group exercise GreekGirl 6 378 Last post June 06, 2018, 11:00:34 AM
by GreekGirl
Theoretical question about surfacants pcm81 1 267 Last post June 04, 2018, 10:51:59 PM
by Enthalpy
isotope questions - likely very simple :) harpo55 3 436 Last post June 04, 2018, 04:21:46 PM
by pcm81
Uncertainty Principle pennytreadful 1 269 Last post June 03, 2018, 09:14:27 AM
by Enthalpy
why does fe dissolve in 1.0 M Ce4+? jchoi 5 358 Last post June 03, 2018, 08:36:26 AM
by Borek
Activated Carbon, Magnetized Activated Carbon, Pure magnetite SEM images Chitoge 0 237 Last post June 01, 2018, 07:21:19 PM
by Chitoge
{paraffin wax formula} mom.bob 1 298 Last post June 01, 2018, 02:16:56 AM
by Enthalpy
Effect of pH on chemiluminescence EmBt 0 289 Last post May 28, 2018, 06:41:28 AM
by EmBt
acidity of HI,HBr,HCl in acetic acid(non-aqueous solvent) page3333 1 344 Last post May 28, 2018, 03:33:25 AM
by Babcock_Hall
Electrolysis process Tiani2709 6 521 Last post May 27, 2018, 05:36:18 AM
by Tiani2709
Please help: Reaction Quotients Qc Gradient 5 512 Last post May 26, 2018, 12:01:58 PM
by Borek
pH solution of NH3 and CH3COOH xshadow 10 2944 Last post May 25, 2018, 11:50:23 PM
by Stronzio2
Protonation / deprotonation of bases in relation to pKa Traumatic Acid 3 474 Last post May 22, 2018, 11:48:42 PM
by Borek
Toluene concentration in ppm lylyan_aki 5 756 Last post May 18, 2018, 10:31:22 AM
by DrCMS
Medicinal Chemistry robert_johnston 7 695 Last post May 17, 2018, 03:37:03 PM
by Babcock_Hall
uv transmittance Surabh K.t 1 437 Last post May 16, 2018, 09:08:04 AM
by Corribus
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