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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
63475 Views
Last post December 31, 2018, 02:39:30 PM
by wildfyr
Reverse Diffusion Demonstration

Started by S_Ch_S | Last post by S_Ch_S Yesterday at 08:24:56 AM

5 Replies
349 Views
Last post Yesterday at 08:24:56 AM
by S_Ch_S
Confused on how to calculate ammonium phosphate buffer molarity

Started by quddit32 « 1 2 » | Last post by Borek March 19, 2024, 09:06:41 AM

17 Replies
622 Views
Last post March 19, 2024, 09:06:41 AM
by Borek
Determination of iron by thiocyanate colorimetry

Started by taa.10 | Last post by Hunter2 March 17, 2024, 10:47:33 AM

6 Replies
409 Views
Last post March 17, 2024, 10:47:33 AM
by Hunter2
Weak Acid-Strong Base Neutralization

Started by rentj | Last post by mjc123 March 06, 2024, 04:49:39 PM

2 Replies
385 Views
Last post March 06, 2024, 04:49:39 PM
by mjc123
Cu2O Unit Cell

Started by jgr | Last post by mjc123 March 04, 2024, 05:08:52 PM

3 Replies
489 Views
Last post March 04, 2024, 05:08:52 PM
by mjc123
Photocatalysis 'Hole' explained

Started by tinypeach | Last post by Corribus March 04, 2024, 11:16:21 AM

4 Replies
477 Views
Last post March 04, 2024, 11:16:21 AM
by Corribus
pH/Henderson–Hasselbalch Calculation Check Request

Started by keyag | Last post by Hunter2 February 25, 2024, 03:11:26 AM

1 Replies
602 Views
Last post February 25, 2024, 03:11:26 AM
by Hunter2
Request for Help Concerning 3 Acids & Bases Questions

Started by keyag | Last post by keyag February 24, 2024, 11:10:04 PM

4 Replies
557 Views
Last post February 24, 2024, 11:10:04 PM
by keyag
2 Arrhenius/Base Identification Questions

Started by keyag | Last post by keyag February 24, 2024, 11:09:46 PM

2 Replies
548 Views
Last post February 24, 2024, 11:09:46 PM
by keyag
What is the pH of a 2.23 M H2SO4 solution? Ka2 (H2SO4) = 1.2 * 10-2

Started by keyag | Last post by keyag February 24, 2024, 11:09:33 PM

2 Replies
455 Views
Last post February 24, 2024, 11:09:33 PM
by keyag
Experimental Design

Started by nightmarewing203 | Last post by Borek February 21, 2024, 04:32:00 PM

2 Replies
468 Views
Last post February 21, 2024, 04:32:00 PM
by Borek
Wittig Reaction to form Stilbene Isomers

Started by DmitriMendeleev | Last post by DmitriMendeleev February 18, 2024, 06:15:49 PM

0 Replies
340 Views
Last post February 18, 2024, 06:15:49 PM
by DmitriMendeleev
What is this?

Started by Kamigumi | Last post by Hunter2 February 18, 2024, 11:51:44 AM

1 Replies
376 Views
Last post February 18, 2024, 11:51:44 AM
by Hunter2
Getting rate second rate of reaction from firs

Started by dzsdgfhjkl | Last post by Aldebaran February 13, 2024, 04:25:12 AM

2 Replies
436 Views
Last post February 13, 2024, 04:25:12 AM
by Aldebaran
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