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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
115 145,504
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
64 153,558
Illegal/Dangerous Activities: Explicit "how to" discussions of illegal and/or dangerous activities, or posts...
Jul31-07 05:03 PM
chemisttree
0 40,711
What is the easiest way you can tell or find out if oxygen is produced in a certain reaction? Or in other words, how...
Dec13-05 01:02 PM
GCT
4 2,725
So, the average rate for a reaction of type A --> product is given by \text{rate} = -\frac{\Delta A}{\Delta t}. Also,...
Dec12-05 07:29 PM
erik-the-red
3 13,864
I am trying to make some Iron (II, III) oxide, Fe3O4. To do this, I used this procedure as a model,...
Dec11-05 02:55 PM
mrjeffy321
6 32,489
if someone ask about optimum orientation of a molecule what exactly are they asking for?
Dec10-05 07:04 PM
devilkidjin
1 2,248
does polychlorinated biphenyl have any hydrogen ? if is contains 10 chlorines and 12 carbons:confused:
Dec10-05 07:02 PM
devilkidjin
1 1,028
according to the boiling point graphs, i found that the boiling point of ketones when there are three and six carbon...
Dec10-05 03:41 PM
movies
17 5,806
can some tell me what exactly it is? like pesticide or something? a littleabout the properties would be nice ...
Dec10-05 01:50 PM
devilkidjin
6 12,697
why the size of superoxide is lager than preoxide??
Dec9-05 07:18 PM
real
6 2,680
I am already known around here for my Iron Oxide , well…how about Copper Oxide too. I am making Copper (II) Oxide...
Dec9-05 01:12 AM
mrjeffy321
3 7,458
Our Chem AP teacher is looking for a cool chem project that we can do (preferably in groups). The reason being that...
Dec8-05 10:55 AM
movies
12 8,887
A while ago AXE came out with a new anti-hangover showergel. I don't understand these advertisement people.. it...
Dec8-05 10:51 AM
movies
9 3,645
Are there any known materials that will retract significantly when an electric current is run through it? I mean will...
Dec6-05 09:20 PM
scott_alexsk
2 1,201
can anyone explain how this little baby works as a reducing agent? ive heard rumours of H- ions, but thats just weird
Dec6-05 06:28 PM
Cesium
8 27,150
I'm dying here! I've looked on pubmed, crc handbooks, bcem texts and google. I need to know how much of various...
Dec5-05 08:07 PM
Moonbear
1 1,644
I distilled some horrible tasting wine to make it into a usable windshield washer fluid (it's just ethanol with some...
Dec5-05 02:51 AM
ShawnD
5 1,856
I have already talked about this a little, but I have some more questions. Do transition elements obey the Octet rule?...
Dec4-05 06:56 PM
movies
4 7,146
I am trying to do a QST2 calculation on two geometry optimized structures that I obtained by doing DFT calcs. The...
Dec4-05 11:19 AM
movies
4 2,455
Do anyone know anything on the green house gases? How are they causing global warming?
Dec3-05 05:44 PM
GCT
3 2,442
Why is it that time of flight mass spectrometers have basically an unlimited range of m/z values that they can...
Dec2-05 02:50 PM
GCT
7 1,677
Ok, My roomate poured me a Weller (bourbon) and Coke in a new styrofoam cup. About 15 minutes later, I noticed...
Dec2-05 02:46 PM
GCT
3 2,161
Okay, I've got this problem in my Chemistry class. It's about half-lifes and all that. If this is the wrong place to...
Nov30-05 02:20 PM
Matthias32
2 1,252
Anyone have a good website that explains hybridization, Kindergarten style? I'm just not getting it :yuck:
Nov30-05 06:46 AM
marlon
1 1,943
I am trying to prove that nickel can be a catalyst in a PEM fuel cell. How can I do this using a rather simple...
Nov29-05 07:44 PM
P-man
0 1,887
Can ions have dipoles? ive had a really long argument with a teacher who says ions cant have dipoles because ions...
Nov28-05 07:55 PM
Stalker23
8 4,023
This question has biologic, chemical and geophysic elements but the question is for chemical specialists. Hence my...
Nov28-05 01:30 AM
ShawnD
2 2,789
Hello, i'm currently doing a project based on the theme rubber, specifically the friction/texture of rubber. so i'm...
Nov27-05 03:46 AM
TriTertButoxy
1 1,574
No, I'm not crazy, nor will use them in an unethical manner. I simply want a novel subject to photograph for Advanced...
Nov27-05 02:18 AM
Matrax
5 3,344
what is your knowledge about carbon ions? is there a machine that determines its creature?
Nov25-05 11:10 PM
Cesium
5 9,015
Hello, A friend of mine has asked a question about a molecule, we think the molecule was a biphenyl molecule with...
Nov23-05 02:54 PM
movies
4 1,582
I'm trying to understand the nucleophilicity of alkynes, my book lists the pKa's of acetylene (HCCH), ethylene...
Nov22-05 11:01 AM
movies
2 6,454
Hello I am looking for a good book that will give me an introduction to chemistry. I work in the optical field...
Nov20-05 03:25 PM
Pseudo Statistic
3 7,422
I have a question: I am interested in chelating zinc to a dipeptide called carnosine (\beta-alanyl-L-histidine)...
Nov19-05 07:16 PM
WALTER B
4 2,572
If found a few places that suggest that CO2 1 has a face center cubic with 4 CO2 atoms in the unit cell. Does this...
Nov19-05 06:58 PM
jd1828
4 6,610
Which salt, composed of atoms from only two elements, has the highest melting point? (E.g., \text{BaF} _2 , ...
Nov16-05 02:06 PM
Gokul43201
5 1,557
This is pretty simple, just give me a quick concept should be enough, no need to go over the details. What...
Nov14-05 05:14 PM
kevin86
2 5,735
Do any know how to remove benzoyle peroxide from PMMA powder which has been mixed with benzoyle peroxide powder...
Nov11-05 09:35 PM
drykchan
0 2,500
I have seen this claim in the Italian documentary about the use of WP in Fallujah. However I don't understand how this...
Nov11-05 12:08 PM
Bystander
7 8,962
when a solution of sulphuric acid was standardised the following results were obtained. exactly 5.3g of pure anhydrous...
Nov10-05 05:25 PM
mrjeffy321
3 1,130
A simulation I'm running takes the density as an input when preparing the system and I'd prefer not to have to measure...
Nov10-05 12:16 PM
movies
1 4,079
I used to understand this -- a few years ago -- but it has completely slipped my mind. What is going on with al this...
Nov9-05 11:37 AM
scott_alexsk
6 31,240

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