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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
43075 Views
Last post December 31, 2018, 02:39:30 PM
by wildfyr
thermodynamics

Started by Akhmal | Last post by mjc123 Today at 06:42:26 AM

1 Replies
73 Views
Last post Today at 06:42:26 AM
by mjc123
I need help in those questions asap!!

Started by faris.z34 | Last post by faris.z34 Yesterday at 08:51:16 AM

2 Replies
84 Views
Last post Yesterday at 08:51:16 AM
by faris.z34
Synthesis of silver metal from silver ore

Started by Win,odd Dhamnekar | Last post by mjc123 Today at 04:15:58 PM

3 Replies
112 Views
Last post Today at 04:15:58 PM
by mjc123
Water Washing Help. Impurity sticks to the glass

Started by The-Differentiator | Last post by The-Differentiator March 06, 2021, 08:08:35 PM

0 Replies
119 Views
Last post March 06, 2021, 08:08:35 PM
by The-Differentiator
Can I use H NMR assignments to make C NMR assignments?

Started by JoeyBob | Last post by JoeyBob March 06, 2021, 06:27:09 PM

0 Replies
121 Views
Last post March 06, 2021, 06:27:09 PM
by JoeyBob
volumetric measurement : significant figures

Started by xshadow | Last post by Borek April 08, 2021, 08:30:07 AM

1 Replies
126 Views
Last post April 08, 2021, 08:30:07 AM
by Borek
HPLC calibration curve of formaldehyde

Started by Odaudu16 | Last post by Odaudu16 February 23, 2021, 06:05:56 AM

0 Replies
128 Views
Last post February 23, 2021, 06:05:56 AM
by Odaudu16
Endothermic reactions

Started by buttha | Last post by buttha March 07, 2021, 07:41:41 AM

0 Replies
130 Views
Last post March 07, 2021, 07:41:41 AM
by buttha
Question *delete me*!

Started by alyssanda.vo | Last post by Babcock_Hall March 15, 2021, 07:42:33 PM

1 Replies
131 Views
Last post March 15, 2021, 07:42:33 PM
by Babcock_Hall
the relationship between [H2CO3] and pCO2

Started by CombinationNice | Last post by CombinationNice April 02, 2021, 01:45:21 AM

0 Replies
138 Views
Last post April 02, 2021, 01:45:21 AM
by CombinationNice
Interpreting uv-vis spectra

Started by Timu | Last post by Timu March 11, 2021, 11:06:10 AM

0 Replies
143 Views
Last post March 11, 2021, 11:06:10 AM
by Timu
How to micronize magnetite powder?

Started by nontony | Last post by nontony October 24, 2020, 03:08:10 PM

0 Replies
146 Views
Last post October 24, 2020, 03:08:10 PM
by nontony
Non-purified Na2SO4 plus water? What would be happen?

Started by metallurgy | Last post by Orcio_Dojek Today at 04:04:45 PM

8 Replies
147 Views
Last post Today at 04:04:45 PM
by Orcio_Dojek
Multiple choice thermodynamic question

Started by Win,odd Dhamnekar | Last post by Meter Yesterday at 05:11:34 PM

3 Replies
148 Views
Last post Yesterday at 05:11:34 PM
by Meter
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