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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
56374 Views
Last post December 31, 2018, 02:39:30 PM
by wildfyr
Proof, legal a fling

Started by TomasStume | Last post by TomasStume Today at 04:57:59 PM

0 Replies
2 Views
Last post Today at 04:57:59 PM
by TomasStume
pH calculation help

Started by FlashwithSymbols | Last post by Yordanka79 December 05, 2022, 12:35:37 PM

2 Replies
1332 Views
Last post December 05, 2022, 12:35:37 PM
by Yordanka79
Why same compound show peak at different retention times during GCMS?

Started by brilinta | Last post by Babcock_Hall December 02, 2022, 01:34:52 PM

2 Replies
207 Views
Last post December 02, 2022, 01:34:52 PM
by Babcock_Hall
Transparent, tasteless, odorless, soluble in water substance

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

2 Replies
328 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
481 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
254 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
460 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
448 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
493 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
425 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
840 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
2244 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
1867 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
1536 Views
Last post September 24, 2022, 03:55:18 AM
by Borek
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