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Problem of the Week Archive

Collection of all our problem of the week threads.

668 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
65395 Views
Last post December 31, 2018, 02:39:30 PM
by wildfyr
Reverse Diffusion Demonstration

Started by S_Ch_S « 1 2 » | Last post by Corribus Today at 09:20:51 AM

29 Replies
4442 Views
Last post Today at 09:20:51 AM
by Corribus
Mass Equivalence of photon with wave length 589nm?

Started by The Tao | Last post by Partuse Today at 06:12:11 AM

3 Replies
11140 Views
Last post Today at 06:12:11 AM
by Partuse
Oxygen dip in ionization energy why?

Started by sd79812 | Last post by sd79812 May 23, 2024, 11:46:54 PM

0 Replies
66 Views
Last post May 23, 2024, 11:46:54 PM
by sd79812
1 Replies
258 Views
Last post May 20, 2024, 12:03:36 PM
by Corribus
Table of which lower energy orbitals shield upper energy orbitals

Started by sd79812 | Last post by sd79812 May 11, 2024, 09:20:32 PM

0 Replies
1402 Views
Last post May 11, 2024, 09:20:32 PM
by sd79812
2 Replies
1696 Views
Last post May 09, 2024, 02:18:38 PM
by Corribus
1st year Inorganic Chemistry Question about Halogen Bonding

Started by pioyi | Last post by Corribus May 06, 2024, 12:33:56 PM

5 Replies
1789 Views
Last post May 06, 2024, 12:33:56 PM
by Corribus
Help balancing a Redox reaction in acidic conditions

Started by margit | Last post by Borek May 06, 2024, 02:19:21 AM

2 Replies
1320 Views
Last post May 06, 2024, 02:19:21 AM
by Borek
Complete the concentration change of each reaction

Started by ramiroflores | Last post by Hunter2 April 24, 2024, 05:08:56 AM

1 Replies
1555 Views
Last post April 24, 2024, 05:08:56 AM
by Hunter2
De-Broglie Energy questions

Started by tinypeach | Last post by Corribus April 16, 2024, 12:36:48 PM

1 Replies
1603 Views
Last post April 16, 2024, 12:36:48 PM
by Corribus
3 Replies
1701 Views
Last post April 13, 2024, 11:34:51 AM
by Suspicious_boat_5926
I need to find flask weight. Instructions unclear to me.

Started by Suspicious_boat_5926 | Last post by Borek April 11, 2024, 03:16:31 AM

7 Replies
2186 Views
Last post April 11, 2024, 03:16:31 AM
by Borek
Mole Fraction and average molar mass

Started by jay11245 | Last post by Hunter2 April 10, 2024, 12:42:41 PM

7 Replies
2091 Views
Last post April 10, 2024, 12:42:41 PM
by Hunter2
Sélective reaction on the 2,3 époxycyclopentanone

Started by guuuu | Last post by guuuu April 08, 2024, 01:18:02 PM

0 Replies
1347 Views
Last post April 08, 2024, 01:18:02 PM
by guuuu
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