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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/...
Jan9-14 11:09 AM
physyapps
113 126,319
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
64 136,549
Illegal/Dangerous Activities: Explicit "how to" discussions of illegal and/or dangerous activities, or posts...
Jul31-07 05:03 PM
chemisttree
0 36,347
Element x has two naturally occurring isotopes. The masses (amu) and % abundance are given. 31x is 35% with mass of...
Oct19-07 04:19 PM
chemisttree
2 7,044
which pair of elements is most apt to form an ionic compound with each other? nitrogen and hydrogen or barium and...
Oct19-07 09:28 AM
p4cifico
4 2,446
For my IB chemistry extended essay, I'm investigating the effect lemon juice has on the color intensity of henna, an...
Oct15-07 01:04 AM
chemisttree
5 17,551
I have these physical chemistry problems and I can't solve them, I would like to find some help on how to solve them....
Oct13-07 07:03 PM
cisidore
0 2,825
http://nobelprize.org/nobel_prizes/chemistry/laureates/2007/ "for his studies of chemical processes on solid...
Oct12-07 05:23 PM
chemisttree
1 1,765
hi... I need a formula to find the density of a solution whose molarity is known. (for example: what is the density...
Oct12-07 05:18 PM
chemisttree
2 11,331
After only two weeks of this semester, we have our first exam in analytical chemistry: 1- Definition of Analytical...
Oct11-07 11:41 PM
symbolipoint
1 1,412
I didn't know where to put this since it pertains to both chemistry and biology so i put it here. One time i...
Oct11-07 10:57 PM
jmnew51
29 7,926
Hey, I just finished a lab on classifying solids based on their physical properties. I was just curious about some of...
Oct9-07 09:05 PM
pencil_4
1 5,929
I want to seperate sodium and potassium carbonate from the ashes of plants. My question is, Is sodium carbonate...
Oct6-07 02:09 PM
JGM_14
12 5,327
In a lab experiment we put some MgSO4 7H2O into a crucible, and brought it to a high temperature using a Bunsen...
Oct6-07 01:35 PM
JGM_14
3 4,443
One thing that always bothered me in Chemistry is how the equilibrium constant is written. It never made sense to me....
Oct5-07 07:30 PM
Hunt_
9 5,429
Has anyone ever formed water by manmade process? How is water formed and what conditions need to be met?
Oct4-07 12:01 PM
Remnant
42 14,788
Is it possible to synthesize adrenaline in the lab?
Oct4-07 11:53 AM
Remnant
7 4,147
I am taking a 1 semester analytical chemistry course with a tough teacher (according to her students), and I want to...
Oct2-07 04:01 PM
lou6
8 8,374
Worked on this problem for an hour and cannot figure it out. Please help. A 5.00 g sample of aluminum pellets...
Sep30-07 09:29 PM
eli64
3 6,027
i have a question, is there a way to calculate the vapor pressure of a pure liquid when just given a formula a total...
Sep26-07 12:52 AM
Gokul43201
1 2,459
What do you think are some of the coolest, most fun, or most interesting chemistry experiments to do at home, and how...
Sep24-07 09:44 PM
jmnew51
5 5,317
I would like to know how to predict when a flow of liquid---dichloromethane, actually---freely flowing downward...
Sep24-07 09:13 PM
Jeff Corkern
2 1,387
Kindly recommend a procedure to determine total kjeldahl-nitrogen Kj-N for leachate. I use the hach method and I...
Sep23-07 05:57 PM
Jeff Corkern
4 3,398
Hello, I'm really having trouble figuring out the specific heat capacity of solid NaOH. Any help is apprieciated....
Sep23-07 06:45 AM
Swiffer WetJet
2 25,786
If I have a mixture of benzoic acid and benzil, and I add dichloromethane to it and extract it using sodium hydroxide,...
Sep23-07 03:43 AM
bomba923
1 4,224
I just finished my first organic chemistry exam and I'm so frustrated. I really enjoy it up until the test. Anyways,...
Sep22-07 06:13 PM
gatorgirl
4 1,503
My girlfriend and I were talking, and she said that a way to tell if a vitamin is absorbed or not, is to mix a few...
Sep20-07 03:48 PM
jim mcnamara
3 2,591
Hi, I wanted to know that whether my following experiment is conceptually correct or not. I am making a...
Sep19-07 05:03 PM
chemisttree
2 1,529
what is it exactly? is it some sort of mythological thing because of symbols? or is it just simply changing elements...
Sep18-07 11:24 AM
Stevedye56
6 1,800
hey whats up guys can anyone help me with these two problems: 1) why does borazine readily undergo addition...
Sep15-07 07:52 PM
Astronuc
2 1,893
This is a topic that I simply know very little about. The question is asking me to determine the pKa value from the...
Sep15-07 12:09 AM
Mitchtwitchita
2 1,988
I want to know how one purchases pure elements. Like Caesium or Neon or Chlorine. Do you need licence to purchase...
Sep13-07 10:39 PM
DaveC426913
6 13,181
Does anyone know of a simple, convenient test that will detect either sugar or aspartame? I'm a diabetic who likes...
Sep12-07 10:40 PM
DaveC426913
19 10,859
is there a relationship between the two? its been bugging me for a while. cant find the answer.
Sep12-07 03:08 AM
bomba923
1 6,707
I'm looking for some help with the stoichiometry of gasoline. 14.7:1 is commonly cited as the stoich ratio for...
Sep11-07 05:09 PM
sicjeff
8 6,847
I've noticed the metallic package seals on some bottles of isopropyl alcohol and other products tend to flake into...
Sep10-07 04:07 PM
turbo
3 2,404
Does anyone know of any chemicals that will vulcanize soybean oil? I only know of two chemicals at the moment-...
Sep10-07 12:32 PM
chemisttree
1 1,734
I've scoured the net looking for some ideas on how to extract the active ingredient from the stevia leaf. A while...
Sep8-07 01:17 AM
jmnew51
6 2,969
Well Im trying this electrosys method and this is how I have it set up: The battery is connected to the salt water...
Sep7-07 10:11 PM
mrjeffy321
10 13,034
What methods are there to make buffer solutions? Could anyone outline them? thanks.
Sep7-07 05:08 PM
Borek
5 7,014
Talking about electrolysis, what happens to the excess power input when gas production rate remains constant even...
Sep6-07 09:37 PM
JGM_14
13 6,217
I've tried looking everywhere but cannot find much information on the vapor pressure of TlI. I'm not very well...
Sep6-07 02:04 PM
Gokul43201
1 2,052
can someone explain to me why reactive metals will form stable compounds with strong bonds? any help will be much...
Sep5-07 08:00 PM
wadevala
4 6,686

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