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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/...
May7-14 10:06 PM
Awheezi
115 144,143
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
64 152,436
Illegal/Dangerous Activities: Explicit "how to" discussions of illegal and/or dangerous activities, or posts...
Jul31-07 05:03 PM
chemisttree
0 40,428
Consider the following reaction: RCOO-COR + R'-OH → RCOO-R' + RCOOH (where -R is an alkyl group) In above...
Oct19-11 10:40 PM
sodaboy7
0 1,804
During E1 elimination reaction, the elimination takes place according to Saytzeff rule; but there is one exception to...
Oct19-11 10:30 PM
sodaboy7
0 1,928
Any ideas what process/material could be responsible for a uniform blue/violet film deposited on the copper components...
Oct19-11 04:08 PM
Caniche
4 1,096
I am having trouble identifying a metal (based on its work function) given the wavelength and stopping potential. I...
Oct19-11 11:25 AM
geej77
2 2,680
can someone clear my concepts about these two equations ??? Equation 1... Concentration(g/dm3) = Concentration...
Oct19-11 06:12 AM
Borek
5 1,253
In layman's language, why have the heavy elements, which were created atom by atom over enormous periods of time,...
Oct19-11 03:47 AM
Borek
1 906
Okay, I have searched the internet for why one mole of any gas occupies the same volume, and found the internet devoid...
Oct19-11 02:05 AM
Borek
2 1,290
what difference,if any are expected between the chemical reactions of Cl 35 and Cl 37? I'm not sure how to attempt...
Oct18-11 03:59 PM
geej77
4 1,485
Hi guys. Imagine how dumb I feel for never having heard of this equation before today. I have a serious exam coming up...
Oct18-11 03:07 PM
Borek
3 1,546
I really really need information on Conway microdiffusion analysis. I know that there is a book but I can't find it...
Oct18-11 01:05 PM
sharif_k
3 6,503
I'm trying to calculate the mass of a chemical (DMSO) and from a NMR spectrum of water and DMSO. I have the value of...
Oct18-11 10:38 AM
oli8819
0 780
I'm in an intro chem class right now and I honestly have no clue where I was when they talked about this BUT here...
Oct18-11 02:42 AM
Borek
1 1,522
i just started studying quantum mechanics in my college.....i asked a number of teachers and seniors that why psi(ψ)...
Oct17-11 01:47 PM
mcbud
7 2,709
I got a question : Why is the nucleon of Chlorine 35.5 ? Why is is not a whole number ?
Oct17-11 12:28 PM
Jadaav
10 1,578
Is there sth like rydberg formula for Molecular ionization?
Oct17-11 02:38 AM
DrDu
2 960
I read that all ligands are Lewis bases but I then read that the number of anionic ligands attached to a metal will...
Oct17-11 02:37 AM
DGJNAc
1 2,334
Could somone explain why dichloromethane has a dipole moment of 1.60 D and how you get this measurement?
Oct16-11 10:11 PM
jtbright
0 1,653
Hello, I am a first year student majoring in chemistry. I really like it and I'm very interested in the subject, but I...
Oct16-11 09:47 PM
symbolipoint
2 2,430
At what temperatures do alpha-linoleic acid, DHA and EPA oxidize? I've tried using Google scholar to find such info...
Oct15-11 11:08 AM
Borek
1 1,850
I have the following doubts while understanding the concept. Please help me solve them :- (1) What is a precipitate...
Oct15-11 11:06 AM
Borek
1 1,978
When sodium metal is added to ammonia, some of the sodium dissolves. Each of the dissolving sodium atoms loses an...
Oct15-11 09:22 AM
AnthonyCChem
0 1,437
Hello! We will be given three bottles of an unknown organic compound, two will be a pure substance and the third...
Oct15-11 03:42 AM
Anna55
3 1,942
I would like to oxidize suspended elemental sulfur to sulfate in a solution. Any suggestions?
Oct14-11 09:44 AM
chemisttree
1 1,323
Hello, This is a matter I have been having some difficulties with for the past few days. My question: How is it...
Oct14-11 03:08 AM
DrStupid
1 2,067
tert-butyl bromide reacts with HOH to give HBr and the corresponding alcohol , C C-C-C OH But tert-butyl...
Oct13-11 04:49 PM
DGJNAc
1 1,433
Hi l have this question in my mind l never found a good reference for the answer . my question is to know how did...
Oct12-11 02:15 PM
lssam
6 1,768
When 2 atoms bond, do all their atomic orbitals combine, or is it just the bonding orbitals that combine? For example...
Oct12-11 01:44 PM
mcbud
7 2,938
Why I can't calculate the same answer as the solution below? I use the value as what the below solution showed. Q:...
Oct12-11 07:40 AM
Borek
1 1,609
In the permanganate ion, manganese is in the +7 oxidation state, therefore it is a d0 ion. I thought that d0 and d10...
Oct11-11 06:08 PM
CrimpJiggler
0 3,581
What are the factors that determine the strength of an Ionic bond? Taking the example of LiF and K20, why does LiF...
Oct11-11 07:39 AM
Qaztgbe
6 4,258
Hi, My textbook is being a bit ambiguous and indecisive, in terms of properly defining something. Can...
Oct10-11 06:59 PM
Yanick
1 1,357
I've been reading about calculating dissolved gas concentrations in water at varying temperature and salinities using...
Oct10-11 05:51 PM
Borek
11 3,944
I need some help with understanding reducing agent selectivity. I recently did a lab where we used two reducing agents...
Oct10-11 05:23 PM
Yanick
5 4,056
What exactly is a double displacement reaction? I searched my textbook for the term--yes, I did check the glossary...
Oct10-11 05:02 PM
Yanick
1 1,488
Hello! How to calculate the hybridisation in carbon compounds? Most of the time whenever i try to find out the...
Oct9-11 11:36 AM
mishrashubham
20 5,811
What are some dangerous chemical compounds and substances that manufactures put into products that you are aware of...
Oct9-11 07:55 AM
256bits
12 3,063
Hi, First, I was wondering, can electrolytic solution only be produced if its solute is an ionic compound? And,...
Oct9-11 03:10 AM
Borek
1 1,165
if i have oxygen + photons => products if this is an elementary process, is this a uni-molecular process or a...
Oct8-11 11:34 AM
juanrga
3 1,780
So we've all seen the pictures of orbitals in chemistry textbooks. You know, the sphere for an s orbital, the two...
Oct8-11 10:26 AM
juanrga
10 4,414
I am trying to find information about how molecular sieves (5 angstroms) affect a mixture if used in excess...
Oct7-11 06:55 PM
Notwen7
0 1,349

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