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Jan16-12 Greg Bernhardt
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
64 157,909
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
116 150,686
Illegal/Dangerous Activities: Explicit "how to" discussions of illegal and/or dangerous activities, or posts...
Jul31-07 05:03 PM
chemisttree
0 41,873
I am having difficulties understanding the concept of hybridization and the σ and ∏ bonds. My current understanding is...
May6-12 06:03 AM
Infinitum
1 1,045
What is a σH adduct? I understand what an adduct is, I am just not sure what the σH is referring to. I could take a...
Nov4-09 04:58 AM
Borek
5 1,075
Can a reaction like the diels alder reaction occur if the diene is not conjugated, but can have the proper geometric...
Mar31-11 12:23 AM
Nemus
3 1,496
http://www.eurekalert.org/pub_releases/2005-06/acs-oc061305.php
Aug3-08 01:32 AM
NERV
1 2,699
Please don't be bothered by my question, i know it sounds real elementary and it could easily be researched, but after...
Mar5-12 11:17 PM
Ygggdrasil
5 2,985
I was wondering what (I) means when it is written after a chemical compound, for example, H2SO4 (I). Thanks!
Mar28-10 08:56 PM
Char. Limit
1 1,408
I'm confused about what is going on theoretically with Raman, and light in general, wrt photon absorption,...
Jun17-11 08:41 AM
Jacksono
0 1,544
Hi, everyone. In the picture attached, what is the meaning of 0oo? what should I read to understand the...
Apr10-13 07:35 AM
DrDu
3 1,057
I have a question regarding the thermite reaction. The chemical equation for it looks like: ...
Jan19-05 06:49 PM
mrjeffy321
3 2,480
Hi, I was just confused as to the semi-structural formula nomenclature of -ene and -yne structures. The thing that...
May14-09 08:10 AM
alxm
1 2,587
One atomic mass unit = .001660565 x 10-24 grams One gram Hydrogen / .001660565 x10-24 grams = 6.02 x 10 26 ? This...
Dec5-11 05:48 AM
morrobay
2 2,087
In carbocation rearrangements, do alkyl shifts only occur when the carbon adjacent the carbocation is a tertiary...
Dec24-11 07:06 PM
CrimpJiggler
2 2,659
Is 1,5-pentanediol more expensive than 1,4-butanediol ?
Nov11-07 03:34 AM
Far Star
1 1,456
1.05 g MgO is added to 110.15ml HCL with an initial temperature of 21.5 degrees Celsius and a final temperature of...
Feb15-10 12:11 PM
haber101
8 1,369
I must derive the 1/4th life expression for a first order rxn. ln(\frac{_{\circ}}{_{t}})=kt...
Nov6-10 05:20 AM
tiny-tim
2 2,393
I have to make a solution of 10,000ppm hypochlorite, since 1ppm is like 1mg/l for a solute in water solution. Does...
Mar26-05 05:20 AM
Borek
5 4,857
Hi All First off, this is one cool site, lots of neat info. Now for my question. I have to clear an argument...
Apr11-08 01:57 PM
NateTG
10 34,088
So my question pertains to a question about 13C NMR. The figure in question is below, the stars indicate the carbons...
Jan31-12 10:37 AM
Mike H
1 3,286
I have a bottle of 100% pure citric acid. I would like to know how to make a 15% solution of citric acid from this.
Jul22-07 07:17 PM
Cesium
6 18,579
Hi all, I was struggling in solving this question which is a part of a practice exam, and I need you to be patient...
Nov4-09 04:28 AM
nimmysnv
4 8,220
I've got the spectra for C5H8O2 (the spectral database confirms that it's ethyl acrylate) and treatment with hot aq....
Jan15-09 12:44 PM
chemisttree
1 2,463
Hello, I have having some difficulty determining the conformer and assigning H-NMR peaks for a compound with a...
May4-14 10:13 PM
Greg Bernhardt
1 694
On the way to prove 1st law of thermodynamics, you consider a system having initial energy E1. Then, you supply heat q...
Sep30-13 04:28 PM
jfizzix
3 1,266
1. I have to calculate the voltage of a standard cell with the following half-cell reactions: Ni(s) ---> Ni2+ + 2e-...
May27-05 09:53 AM
GCT
4 1,457
1.What will be produced when Cu(II)SO4 is mixed with sodium carbonate 2.What will be produced when Cu(II)SO4 is...
Sep29-06 05:28 PM
Stevedye56
1 1,858
For organic chemistry, in an experiment, how does the epimerization (of H) of Potassium carbonate work? Does...
Aug20-11 10:56 PM
c03rcion
4 2,261
Hi, there have been two questions that have been bothering me and I would really like some explanations. 1. When an...
May14-10 05:09 PM
halcon
7 5,984
what is CrO42- in chemistry? how do you combine the formula for Mg2+ and CrO42- please explain and show work...
Sep28-09 03:36 PM
Missionz12
4 1,025
thought I'd ask here too..I have 2 quick questions. One is on naming compounds (hydrocarbons) a) CH3 - C = CH -...
May30-05 03:14 PM
Gokul43201
4 1,183
Can anyone point me to some research or some articles that can explain why this molecule is organic. I know it has a...
Mar3-09 11:34 AM
thE3nigma
0 1,514
I've attached the image. Is the naming of this molecule correct? If so, why is the methyl prefix necessary? ...
Mar18-13 09:02 PM
Traxfam
3 1,035
hey I have been doing some ID work and my NMR/IR results have shown I am working with 2-methylbutan-2-ol would...
Jun21-05 08:11 PM
hewinsd
2 4,490
there are 2.0e-8 M NaOH in water. I have to calculate the pH of the solution considering the OH from the water. The...
Mar2-05 11:14 AM
gunnar
2 1,804
http://nobelprize.org/chemistry/laureates/2005/index.html The Royal Swedish Academy of Sciences has decided to...
Oct11-05 03:27 PM
movies
4 2,408
<link deleted> It details the discovery of a 2300 year old battery found in Iraq. basically it is a pot with some...
Jun1-07 07:00 PM
Moonbear
9 2,358
Hi folks I am doing my PhD in computational chemistry. I would like to plot 2D rmsd matrix plot using matlab. ...
Jul30-10 05:30 AM
Bala06
0 3,029
When enough heat is added to water to separate the bonds into hydrogen and oxygen wouldn't that heat cause the...
Sep30-10 01:51 PM
Ygggdrasil
2 3,930
i need to find the nodal plane equations for any of the 2p orbitals the angular wavefunction for 2pz is :Y=...
Oct24-11 12:42 PM
khurram usman
0 1,724
Ok, this is from the first's: :wink: I have an iron stick of 3 inch long, If I insert this stick into a baz jar...
Dec29-07 02:41 AM
Jekertee
7 1,852
1. Do adjacent water molecules fit together so tightly that water is "continuous" ? 2. If the answer to 1. is "no",...
Nov10-11 11:39 AM
rollcast
7 1,798

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