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Equilibrium of chromate and dichromate
If a reaction is endothermic, then increasing the temperature will increase the equilibrium constant ... |
26-5-2019 at 12:10
by: DraconicAcid |
Raising crystals and changing crystal colors
[rquote=613273&tid=150238&author=Antiswat]how long is a piece of string really? [/rquote]
... |
22-5-2019 at 09:34
by: DraconicAcid |
Preperation of ethyl salicylate
I've given up on trying to make esters of salicylic acid. I've switched to cinnamates. They work b ... |
21-5-2019 at 17:01
by: DraconicAcid |
Tourist/sightseeing places related to chemistry
In Wurzburg, Germany, they have the Roentgen museum, where X-rays were discovered. It's just a few ... |
18-5-2019 at 18:40
by: DraconicAcid |
Lewis Acid and Base questions
Basically, a Lewis base (like a Bronsted-Lowry base) is going to share its electrons with an acid to ... |
18-5-2019 at 13:37
by: DraconicAcid |
tannin source
Surely you could also extract tannin from tea? |
12-5-2019 at 22:35
by: DraconicAcid |
Pretty Pictures (2)
Crude cinnamic acid, basically solidified blobs of acid mixed with cinnamaldehyde, with crystals of ... |
10-5-2019 at 12:19
by: DraconicAcid |
Pretty Pictures (2)
[rquote=611874&tid=26378&author=DavidJR]Are you sure that's salicylic acid? When I recrystal ... |
7-5-2019 at 18:00
by: DraconicAcid |
Pretty Pictures (2)
Some crystals of salicylic acid, grown from toluene/hexane. i was *trying* to make butyl salicylate ... |
7-5-2019 at 17:20
by: DraconicAcid |
Preperation of ethyl salicylate
I tried again to make butyl salicylate, once using boric acid as a catlyst, and once using sulphuric ... |
7-5-2019 at 17:17
by: DraconicAcid |
Scholarship, wisdom, knowledge, kindness, all rolled up in
[rquote=611404&tid=149674&author=MrWonderful]Are there any adults here? Any at all?
Aren't ... |
3-5-2019 at 17:09
by: DraconicAcid |
Identification of a mystery metal
That surprises me, just from the toxicity of H2S.
At any rate, the colour of the sulphide isn't v ... |
1-5-2019 at 09:02
by: DraconicAcid |
Identification of a mystery metal
[rquote=611086&tid=149463&author=Ubya]If you were able to scrape it easily it's not SS.
To ... |
1-5-2019 at 07:51
by: DraconicAcid |
Gold is dissolving in hot HCl + H2O2 solution
You don't need to generate chlorine in situ to dissolve gold- the presence of chloride stabilizes th ... |
30-4-2019 at 20:36
by: DraconicAcid |
Identification of a mystery metal
Does it react with more concentrated hydrochloric acid? Is it magnetic? |
30-4-2019 at 15:52
by: DraconicAcid |
detritus from Mallinckrodt thread
[rquote=610956&tid=149459&author=fusso]CNN? Great. Dismissed. [/rquote]
Why? You only tru ... |
30-4-2019 at 11:14
by: DraconicAcid |
adjusting ph problems
If you're using a strong acid and a strong base to try to get the pH to 7, of course you're going to ... |
26-4-2019 at 10:21
by: DraconicAcid |
Please give me the most accurate Ksp data
http://www2.chm.ulaval.ca/gecha/chm1903/6_solubilite_solides/solubility_products.pdf |
24-4-2019 at 08:44
by: DraconicAcid |
Please give me the most accurate Ksp data
[rquote=610153&tid=148612&author=CharlieA]
Now I am really confused. What do you mean by K ... |
23-4-2019 at 17:05
by: DraconicAcid |
Rotation of atoms around single/double/triple bonds
[rquote=610127&tid=148827&author=Endo]Also with double bonds if you have a source of UV ener ... |
23-4-2019 at 12:00
by: DraconicAcid |
Rotation of atoms around single/double/triple bonds
That kinda makes sense. If you rotate a carbon-carbon double bond 90 degrees, you completely break ... |
23-4-2019 at 11:23
by: DraconicAcid |
Rotation of atoms around single/double/triple bonds
There is generally free rotation around single bonds.
There is no free rotation around a double b ... |
23-4-2019 at 07:48
by: DraconicAcid |
Please give me the most accurate Ksp data
[rquote=609991&tid=148612&author=fusso]So that means the site simply use the solubility to c ... |
23-4-2019 at 07:46
by: DraconicAcid |
Please give me the most accurate Ksp data
The hydroxides are complicated also by the formation of complex ions such as [Al(OH)]2+, [Al(OH)2]+ ... |
23-4-2019 at 00:22
by: DraconicAcid |
Please give me the most accurate Ksp data
Some Ksp values will be measured at standard ionic strength; others will be extrapolated to an ionic ... |
22-4-2019 at 21:47
by: DraconicAcid |
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