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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
44840 Views
Last post December 31, 2018, 02:39:30 PM
by wildfyr
MOVED: Empirical formula question

Started by sjb | Last post by sjb Today at 01:56:07 AM

0 Replies
13 Views
Last post Today at 01:56:07 AM
by sjb
MOVED: Physics - energy

Started by sjb | Last post by sjb Today at 01:58:32 AM

0 Replies
13 Views
Last post Today at 01:58:32 AM
by sjb
Combustion analysis

Started by Win,odd Dhamnekar | Last post by Win,odd Dhamnekar June 10, 2021, 01:03:40 AM

0 Replies
119 Views
Last post June 10, 2021, 01:03:40 AM
by Win,odd Dhamnekar
MOVED: mechanism reactions

Started by Borek | Last post by Borek April 22, 2021, 02:56:10 AM

0 Replies
128 Views
Last post April 22, 2021, 02:56:10 AM
by Borek
Calorimetry

Started by Win,odd Dhamnekar | Last post by Borek July 01, 2021, 07:54:51 AM

1 Replies
150 Views
Last post July 01, 2021, 07:54:51 AM
by Borek
Round bottom vs Flat bottom flask for Vacuum distillation

Started by spyro | Last post by wildfyr July 30, 2021, 08:01:09 PM

2 Replies
150 Views
Last post July 30, 2021, 08:01:09 PM
by wildfyr
Origins of the names for orbitals (s, p, d, f, etc...)

Started by Chahud | Last post by Corribus July 31, 2021, 07:19:15 PM

1 Replies
151 Views
Last post July 31, 2021, 07:19:15 PM
by Corribus
Equivalence point calculation with ΔV, V , pH and ΔpH given.

Started by SeekingBoi | Last post by Borek June 10, 2021, 02:55:44 AM

1 Replies
154 Views
Last post June 10, 2021, 02:55:44 AM
by Borek
Irradiation forming traces of a product

Started by myii | Last post by myii May 15, 2021, 09:50:26 AM

0 Replies
173 Views
Last post May 15, 2021, 09:50:26 AM
by myii
Gases and stoichiometry question

Started by emilie | Last post by Borek June 11, 2021, 02:43:49 AM

2 Replies
174 Views
Last post June 11, 2021, 02:43:49 AM
by Borek
Grignard Reaction Questions

Started by jemexpress | Last post by Meter June 11, 2021, 03:30:36 PM

1 Replies
174 Views
Last post June 11, 2021, 03:30:36 PM
by Meter
Big noise grenade and bomb

Started by v50000ds | Last post by sjb June 13, 2021, 04:41:55 AM

1 Replies
175 Views
Last post June 13, 2021, 04:41:55 AM
by sjb
Molecular orbital diagram of N-O and C-O

Started by mana | Last post by Corribus July 25, 2021, 02:17:01 PM

1 Replies
180 Views
Last post July 25, 2021, 02:17:01 PM
by Corribus
Enthalpy computation

Started by Win,odd Dhamnekar | Last post by Orcio_Dojek July 04, 2021, 02:25:35 PM

1 Replies
183 Views
Last post July 04, 2021, 02:25:35 PM
by Orcio_Dojek
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