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How to determine the ratio of two chemicals mixed together?
If I needed to do that in the lab, I'd titrate a sample with silver nitrate. That would give you th ...
17-1-2019 at 13:57
by: DraconicAcid
2,4,6-trinitrotoluene
[rquote=573399&tid=120534&author=fusso][rquote=573297&tid=120534&author=Ogannessionn ...
17-1-2019 at 11:13
by: DraconicAcid
Unusual periodic table
Oh, yes, that's the abbreviated version that's been floating around since shortly after Mendeleev wr ...
12-1-2019 at 20:41
by: DraconicAcid
Relation between solubility and temperature
If you need the molarity for a dilute solution, then just assume that the 100 g of water makes 100 m ...
11-1-2019 at 13:50
by: DraconicAcid
Relation between solubility and temperature
Mole fraction equilibrium constant? I've never heard of that- equilibrium constants are always in m ...
11-1-2019 at 12:00
by: DraconicAcid
Relation between solubility and temperature
[rquote=581022&tid=127079&author=r0749547][rquote=580567&tid=127079&author=DraconicA ...
11-1-2019 at 11:13
by: DraconicAcid
Relation between solubility and temperature
ln(K1/K2)= (-(delta)H/R)*(1/T1-1/T2) The delta H, and the solubility at one temp, is all you need.
...
10-1-2019 at 13:10
by: DraconicAcid
Relation between solubility and temperature
[rquote=580442&tid=127079&author=Metacelsus]This equation uses the changes in enthalpy and e ...
10-1-2019 at 10:29
by: DraconicAcid
Preparation of Vanadium from its Pentoxide
I don't know how well it crystallizes, but the easiest way to reduce vanadium(V) is with dilute sulp ...
9-1-2019 at 08:52
by: DraconicAcid
Robot arm manipulation - for risk aversion with energetic materials
Can I get one that will mark lab reports for me?
8-1-2019 at 18:55
by: DraconicAcid
Copper oxide
True. I haven't done it in large quantities, but the supernatant is far easier to decant from the o ...
3-1-2019 at 13:15
by: DraconicAcid
Copper oxide
[rquote=569488&tid=117729&author=Fulmen]That has not been the case in my experiments. Gels t ...
3-1-2019 at 10:57
by: DraconicAcid
Does NaHSO4 + Na2CO3 make lye and sodium sulfate?
No. You will get sodium sulphate and sodium hydrogen carbonate. If you add excess sodium hydrogen ...
17-12-2018 at 18:31
by: DraconicAcid
Dimethylmercury cold storage?
[rquote=563986&tid=111265&author=Ubya]
who doesn't radio tag dimethyl mercury in his free t ...
17-12-2018 at 11:45
by: DraconicAcid
Alkali metals
[rquote=564138&tid=113326&author=ChemistryForever]The oxygen dissolved in the oils. Also I w ...
17-12-2018 at 10:26
by: DraconicAcid
Tin from Solder
Lead will form complex ions with excess chloride, so some of it will stay in solution. The sulphate ...
17-12-2018 at 09:11
by: DraconicAcid
Alkali metals
An alkali metal isn't going to get coated any faster in oil than in toluene- oxygen and water have m ...
16-12-2018 at 19:37
by: DraconicAcid
Chloroform questions
Damn- thinking of the iodoform reaction. I just mean you have to use more oxidizer.
16-12-2018 at 17:06
by: DraconicAcid
Chloroform questions
With isopropanol, you have to use an extra equivalent of iodine to oxidize the alcohol to acetone.
16-12-2018 at 14:54
by: DraconicAcid
do-it-yourself nuclear magnetic resonance spectroscopy
I will be in awe of anyone who can build a functional NMR at home.

That being said, commercial NM ...
16-12-2018 at 09:10
by: DraconicAcid
Removing fishy smell from air - possible?
The smell is amines (given off by the decomposition of amino acids in proteins)- you need something ...
15-12-2018 at 11:31
by: DraconicAcid
Astatine probable vapor colour
Iodine vapour is brown? It's always looked beautifully purple to me.
14-12-2018 at 10:57
by: DraconicAcid
Zinc chloride from zinc used for construction - toxicity issues
I wouldn't ask that AJKOER be banned, but he should have a custom title warning people about his fli ...
10-12-2018 at 13:21
by: DraconicAcid
Bond rotation
Just to add- at low temp, the DMF molecule is planar, with one methyl being basically trans to the o ...
10-12-2018 at 12:50
by: DraconicAcid
Silver nitrate giving off HCl ??
Perhaps you're smelling NO2, which smells like bleach?
10-12-2018 at 10:59
by: DraconicAcid
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