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Problem of the Week Archive

Collection of all our problem of the week threads.

669 Posts
58 Topics

Last post by Borek
in Re: Chemistry
on October 12, 2019, 04:03:28 AM

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Stoichiometry calculator

Started by Borek | Last post by wildfyr December 31, 2018, 02:39:30 PM

3 Replies
56206 Views
Last post December 31, 2018, 02:39:30 PM
by wildfyr
Transparent, tasteless, odorless, soluble in water substance

Started by LabGuy | Last post by jeffmoonchop November 26, 2022, 09:31:39 AM

2 Replies
219 Views
Last post November 26, 2022, 09:31:39 AM
by jeffmoonchop
Does metallic iron dissolve in water?

Started by sharbeldam | Last post by Enthalpy November 24, 2022, 08:28:06 PM

11 Replies
375 Views
Last post November 24, 2022, 08:28:06 PM
by Enthalpy
Thin Layer Chromatography - No Standard

Started by trichocereus | Last post by trichocereus November 19, 2022, 01:58:44 PM

0 Replies
156 Views
Last post November 19, 2022, 01:58:44 PM
by trichocereus
Concept Help

Started by Card1ologist | Last post by Card1ologist November 13, 2022, 03:26:38 PM

4 Replies
364 Views
Last post November 13, 2022, 03:26:38 PM
by Card1ologist
Extraction Help

Started by Mccora | Last post by Orcio_87 November 11, 2022, 04:18:51 PM

1 Replies
340 Views
Last post November 11, 2022, 04:18:51 PM
by Orcio_87
TBTU

Started by Xera | Last post by Hunter2 November 09, 2022, 03:54:42 PM

1 Replies
389 Views
Last post November 09, 2022, 03:54:42 PM
by Hunter2
What type of training is required for a biochemist?

Started by dylanpaye | Last post by dylanpaye November 01, 2022, 11:48:31 PM

0 Replies
343 Views
Last post November 01, 2022, 11:48:31 PM
by dylanpaye
carbon dioxide detection

Started by Corribus | Last post by Hunter2 October 23, 2022, 02:35:40 PM

5 Replies
730 Views
Last post October 23, 2022, 02:35:40 PM
by Hunter2
Limit of boiling points in simple distillation

Started by Chanya | Last post by Chanya October 07, 2022, 06:22:53 AM

5 Replies
2147 Views
Last post October 07, 2022, 06:22:53 AM
by Chanya
How do I interpreate the coloumb's law in chemistry (rather than Physics)

Started by Eric_Zhang | Last post by Enthalpy September 26, 2022, 06:07:02 AM

3 Replies
1788 Views
Last post September 26, 2022, 06:07:02 AM
by Enthalpy
Help Balancing Equation for Gen Chem

Started by kp73 | Last post by Borek September 24, 2022, 03:55:18 AM

1 Replies
1461 Views
Last post September 24, 2022, 03:55:18 AM
by Borek
Superimposable - Non Superimposable

Started by Wntalchmstry69 | Last post by Hunter2 September 13, 2022, 06:24:57 AM

1 Replies
1526 Views
Last post September 13, 2022, 06:24:57 AM
by Hunter2
Measuring negative pKa values - is it possible?

Started by electrogeek | Last post by Babcock_Hall September 06, 2022, 09:55:26 AM

5 Replies
1993 Views
Last post September 06, 2022, 09:55:26 AM
by Babcock_Hall
Book Question

Started by bast | Last post by Borek September 04, 2022, 09:44:32 AM

5 Replies
1995 Views
Last post September 04, 2022, 09:44:32 AM
by Borek
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