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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
47841 Views
Last post December 31, 2018, 02:39:30 PM
by wildfyr
How to chemically (solid-state) mix Industrial Waste and Ferrous Slag?

Started by metallurgy | Last post by metallurgy November 24, 2021, 06:37:45 AM

0 Replies
86 Views
Last post November 24, 2021, 06:37:45 AM
by metallurgy
Doing a research project on sodium hypochlorite

Started by Alexlynn | Last post by Alexlynn November 23, 2021, 05:36:29 PM

0 Replies
101 Views
Last post November 23, 2021, 05:36:29 PM
by Alexlynn
What is the product of Na2CO3 + CuSO4*5H2O?

Started by myst37 | Last post by Orcio_Dojek November 23, 2021, 03:55:33 PM

3 Replies
156 Views
Last post November 23, 2021, 03:55:33 PM
by Orcio_Dojek
Calculating Change in Enthalpy via Equation Manipulation

Started by novalia | Last post by Orcio_Dojek November 22, 2021, 10:25:23 AM

2 Replies
185 Views
Last post November 22, 2021, 10:25:23 AM
by Orcio_Dojek
2 Replies
218 Views
Last post November 19, 2021, 11:38:38 AM
by Win,odd Dhamnekar
Difference in [itex] Z_{eff}[/itex] of electron of any element

Started by Win,odd Dhamnekar | Last post by mjc123 November 19, 2021, 10:23:02 AM

3 Replies
248 Views
Last post November 19, 2021, 10:23:02 AM
by mjc123
Grafting question

Started by simanbent | Last post by Corribus November 18, 2021, 09:23:18 AM

1 Replies
170 Views
Last post November 18, 2021, 09:23:18 AM
by Corribus
Balance of redox reaction

Started by Glitch000 | Last post by Orcio_Dojek November 17, 2021, 11:13:35 AM

2 Replies
237 Views
Last post November 17, 2021, 11:13:35 AM
by Orcio_Dojek
Electron-transfer reactions

Started by Win,odd Dhamnekar | Last post by mjc123 November 16, 2021, 05:19:52 PM

7 Replies
454 Views
Last post November 16, 2021, 05:19:52 PM
by mjc123
any solution preparation software?!

Started by mana | Last post by Borek November 15, 2021, 06:11:12 PM

1 Replies
161 Views
Last post November 15, 2021, 06:11:12 PM
by Borek
MOVED: Equilibrium Question With Gases

Started by sjb | Last post by sjb November 13, 2021, 02:04:32 AM

0 Replies
169 Views
Last post November 13, 2021, 02:04:32 AM
by sjb
Rate Laws and order of reaction

Started by Jackmcnulty | Last post by mjc123 November 11, 2021, 05:43:25 PM

3 Replies
246 Views
Last post November 11, 2021, 05:43:25 PM
by mjc123
1 Replies
188 Views
Last post November 11, 2021, 08:51:30 AM
by Orcio_Dojek
Redox reaction

Started by Glitch000 | Last post by mjc123 November 11, 2021, 05:27:20 AM

6 Replies
313 Views
Last post November 11, 2021, 05:27:20 AM
by mjc123
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