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Chemistry

- The study of the nature, properties, and composition of matter. Biochemistry, Organic, Inorganic, Analytical...
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Jan16-12 Greg Bernhardt
chemistry, websites Sticky Thread Pinned: Good chemistry websites ( 1 2 3 ... Last)
I think that these links can be interesting: PeriodicTable: http://www.webelements.com/...
Aug20-14 04:40 PM
Andrew Tsvyk
116 150,708
chemical, latex, typeset Sticky Thread Pinned: Chemical LaTeX typeset ( 1 2 3 ... Last)
Physicsforums now has a very cool feature, which enables complex typesetting for formulas or equations! A tutorial...
Jul7-13 04:53 PM
jackmell
64 157,933
Illegal/Dangerous Activities: Explicit "how to" discussions of illegal and/or dangerous activities, or posts...
Jul31-07 05:03 PM
chemisttree
0 41,880
Is bio-fuel the answer for man's problems, or can we produce petro rather fighting over it?
May28-14 01:27 AM
Ivan Seeking
15 1,430
Might be a stupid question but gotta ask. The bonds of benzene have a bond dissociation energy in between that of a...
May27-14 03:30 AM
DrDu
7 895
Is it possible, and if so how, to obtain oxygen by breaking apart Carbon Dioxide or Sulphuric Acid?
May26-14 09:18 AM
adjacent
6 795
Do I need to worry about the pore size, or can I just assume that any/all paper filter will remove the organic...
May25-14 08:36 PM
kl055
6 751
Consider the usual primary halogenoalkane aqueous alkaline hydrolysis reaction RX + OH- --> ROH + X- We know...
May25-14 11:54 AM
Borek
3 654
why enthalpy of neutralisation of HF is greater than 68KJ. MY attempt Enthalpy of neutralisation= Enthalpy of...
May25-14 07:06 AM
theincrediblea
3 679
Are electrons negative to anything? Did we notice two different charges and decide to label them like we did with left...
May24-14 09:56 PM
jtbell
2 774
Hi, I'm looking for a good chemistry lab manual/book that discribes how the general lab equipment works (with pictures...
May24-14 12:18 PM
christian0710
3 648
what does coordination no in crystal structures really mean? i know it's no of nearest neighbors but has it...
May23-14 03:24 AM
DrDu
8 806
I read about a study that nitro fatty acids reduced blood pressure in mice and perhaps in humans. What is nitro fatty...
May21-14 03:19 PM
DrClaude
1 563
My organic chemistry textbook says that ethers generally have higher boiling points than alkanes because of...
May21-14 01:57 AM
Borek
2 624
Hi I just wondering how to report negative values cuased by non-zero intersection. For example, when the...
May21-14 01:52 AM
DrDu
8 702
Is anyone able to comment on the crystalline structures in the second chapter? Copper's cubic unit of structure is...
May20-14 10:50 AM
cseal
2 617
If I add Angostura Bitters to a glass and then add tonic water it fizzes up far faster than tonic alone, at some...
May19-14 02:25 AM
Borek
2 531
We had a few boxes of lab coats recently donated, and I was thinking of tie-dyeing some for fun. Instead of getting a...
May18-14 08:22 PM
mishima
2 534
If I am doing calorimetry, I know that if I put something like CuSO4 in water it will dissociate and the water will...
May17-14 02:25 PM
Yanick
2 542
In this table there are two different naphthene so this confuses me.
May17-14 01:18 PM
Borek
5 472
I was wondering what the most effective (i.e. most accurate) methods are for determining the concentration of a known...
May17-14 12:44 PM
bitbot
2 501
what is the difference between acid,base,salt, amphoteric and neutral compounds ? How all these properties are related...
May17-14 12:44 PM
Qube
1 515
In lab I am doing a series of single replacement reactions and I am curious how to calculate the heat of reaction for...
May17-14 02:55 AM
Borek
4 543
So I was wondering if anyone had any ideas on what to replace salt-peter with in incense. Incense is usually made from...
May15-14 07:07 PM
eigenperson
1 519
I'm learning about various radical reactions, the thing is I'm still getting my head around 'half arrow' mechanisms....
May15-14 06:52 PM
Yanick
1 452
Is it possible someone can explain the point of doing this, I am having a really hard time grasping the concept. For...
May15-14 06:48 PM
Yanick
1 464
Boiling point elevation depends on how many ions dissociate in the solution. Typically CaCl2 is a good substance to...
May15-14 04:44 PM
Austin
2 480
I have some questions how various substituents are transfering benzene conjugated (π) electrons (i.e....
May15-14 03:58 AM
sludger13
18 1,226
Hello all, In chemistry class we recently began the subject of nuclear chemistry. I'm sure you all know that...
May15-14 03:17 AM
abitslow
3 525
In 3D printing it is a well known trick to use Acetone to smooth/dissolve prints made from ABS plastic. Most articles...
May14-14 02:38 PM
rm446
0 444
HCl(l) + H2O → H+(aq) + Cl-(aq) or is it HCl(g)+ H2O → H+(aq) + Cl-(aq) If HCL is liquid is it dil. or...
May14-14 02:30 AM
Borek
23 1,067
>According to http://www.chemguide.co.uk/physical/redoxeqia/introduction.html each electrode has an absolute electrode...
May13-14 06:28 PM
sgstudent
13 770
What are your thoughts on this excerpt from my chem prof's textbook? I have a few problems with the beginning...
May13-14 10:31 AM
Yanick
8 686
So I've read lab grade ethanol is dangerous, and so is alcohol made at home that is distilled because of methanol. ...
May13-14 08:25 AM
Greg Bernhardt
1 644
Suppose I am trying to dissolve a compound into a minimal amount of solvent (let's assume that this compound is not...
May11-14 04:11 AM
lavoisier
4 640
Hi everyone, Some time ago i made a DIY AC Stick Welder, while i understand the basics of the machine, heat...
May9-14 03:03 PM
Nuckelavee
7 734
BTW, exist some substance that when is mixed with nitrogen, or with some compost of nitrogen, reacts and explodes?...
May9-14 12:56 PM
Borek
6 658
I am doing a project in Chemistry and I need to use Hess' Law to cancel two equations and if in one equation the...
May8-14 02:39 AM
Borek
2 648
Are species such as sulfuric acid and phosphoric acid better represented as charge-separated species rather than as...
May8-14 01:33 AM
DrDu
13 717
Dealing with these has reminded me why I hated chemistry. What is the relationship between the above 3? Given...
May7-14 01:02 PM
Borek
9 732
Who first isolated praseodymium in 1931? To date, I've been unable to find a single source that consistently...
May7-14 12:48 PM
questar
5 575
Recently, I have read a lot about the physics behind negative refraction, super lenses, meta-materials and the like...
May7-14 07:28 AM
DrDu
3 525
Dear , Can someone please tell me what material I can refer to for the derivation of Marcus Electron Transfer...
May7-14 07:05 AM
Borek
1 454

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