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Problem of the Week Archive

Collection of all our problem of the week threads.

650 Posts
57 Topics
Last post by bubblegumpi
in Re: Stoichiometry exerci...
on May 14, 2017, 12:45:44 PM
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peterschmidt3943 and 82 Guests are viewing this board.
Not a problem of the week, but similar level of difficulty « 1 2 » Borek 18 4957 Last post November 19, 2017, 12:34:32 AM
by Borek
Stoichiometry calculator Borek 2 16833 Last post January 06, 2015, 04:01:01 AM
by Borek
Reaction formula peterschmidt3943 0 14 Last post Today at 01:44:34 PM
by peterschmidt3943
Oxonium Ion peterschmidt3943 4 127 Last post Today at 05:42:11 AM
by Enthalpy
Please help with HW tellyas 2 103 Last post Yesterday at 03:14:54 PM
by tellyas
Why do Cl-,Br- give Sn2 with 2' alkyl halide while Sn1 with 2' alcohol ??! xshadow 8 271 Last post Yesterday at 06:59:22 AM
by xshadow
Acids and Bases Brönsted peterschmidt3943 2 130 Last post Yesterday at 06:20:33 AM
by Enthalpy
How to convert glucose to cellulose? FranzPattison 3 129 Last post Yesterday at 04:02:29 AM
by Babcock_Hall
Making a buffer with a pH of 4.8? sammynovak 1 81 Last post January 16, 2018, 02:48:03 PM
by Babcock_Hall
Why halide are para-orto directors? xshadow 0 83 Last post January 15, 2018, 11:22:49 PM
by xshadow
pH Meter Question bast 1 131 Last post January 15, 2018, 05:23:36 PM
by chenbeier
Paint Bdhclof2006 1 102 Last post January 15, 2018, 10:16:14 AM
by Borek
Why is A) the best nucleophile? Firehchicken 5 266 Last post January 14, 2018, 04:43:55 AM
by Babcock_Hall
Pyrite oxidation homework problem Loler 1 133 Last post January 14, 2018, 01:39:36 AM
by Borek
Stoichiometry question: combustion of natural gas supernatant 2 187 Last post January 12, 2018, 07:36:32 AM
by supernatant
Relationship between Enthalpy and Kinetic Energy cvc121 2 180 Last post January 12, 2018, 03:45:28 AM
by Enthalpy
Confusion Regarding State and Path Functions cvc121 1 196 Last post January 11, 2018, 03:52:37 AM
by Corribus
MOVED: Simple way the know the kind of vibrations in IR ? Arkcon 0 158 Last post January 09, 2018, 07:00:17 AM
by Arkcon
Struggling with a question about acid-base washes to separate starting material suckingalemon 2 255 Last post January 08, 2018, 04:07:46 AM
by Babcock_Hall
Redox reaction sun725 2 265 Last post January 07, 2018, 11:08:20 PM
by mjc123
MOVED: Rust conversion, phosphoric and sulphuric acid Arkcon 0 144 Last post January 07, 2018, 01:38:35 PM
by Arkcon
MOVED: VACUUM CHAMBER -- IS THIS VIDEO FAKE? Arkcon 0 178 Last post January 06, 2018, 02:48:12 AM
by Arkcon
Balancing really difficult chemical equations « 1 2 » nectarines 19 7071 Last post January 05, 2018, 10:27:51 AM
by kingkev101
MOVED: Mixing alcohol Arkcon 0 243 Last post January 03, 2018, 01:22:37 PM
by Arkcon
MOVED: This 19FNMR Coupling Pattern Arkcon 0 178 Last post January 03, 2018, 01:22:16 PM
by Arkcon
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