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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
115 141,405
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
64 150,280
Illegal/Dangerous Activities: Explicit "how to" discussions of illegal and/or dangerous activities, or posts...
Jul31-07 05:03 PM
chemisttree
0 39,934
I posted this in cosmology too, but I felt it deserved to be here also. I recently learned something about chemical...
Feb4-08 12:25 PM
Andy Resnick
1 1,550
When Ethanol is talked about as a fuel, it's the same exact molecule in alcoholic beverages, right? If that's the...
Feb1-08 03:49 PM
chemisttree
7 10,809
I want to ask you something. What happens with the lithium battery (lets say after 100 times of recharging) and loses...
Feb1-08 01:23 AM
Physicsissuef
2 1,860
I work in a microbiology lab. I was making up some plates for growing bacteria. The only difference in plates was...
Jan31-08 08:38 PM
Spirochete
5 6,256
Given the following article: http://www.innovations-report.de/html/berichte/studien/bericht-96564.html What are...
Jan31-08 04:01 PM
chemisttree
10 3,435
I just learned octane numbers in organic chemistry a few days ago, and I'm extremely confused about it. From what I...
Jan29-08 11:27 AM
chemisttree
9 3,127
I'm having trouble understanding why the fact that there are two hydroxides doesn't matter in this problem. What...
Jan28-08 02:27 PM
kazimmerman
3 7,655
I am in high school chemistry, and we are learning about gases. We were told that temperature is a measurement of the...
Jan28-08 07:10 AM
pkleinod
4 2,031
can anybody here help me out with this problem? A quantity of 4.00 x 10^2 mL of 0.600 M HNO3 is mixed with 4.00 x...
Jan26-08 10:28 PM
Mitchtwitchita
14 3,849
If it is thermodynamically spontaneous for substrate and product to bind to the enzyme, why does the enzyme ever...
Jan25-08 12:40 PM
Andy Resnick
5 2,899
During the Viking missions to mars, three experiments were done to search for traces of life. The pyrolytic-release,...
Jan25-08 03:28 AM
W3pcq
5 2,401
I would like to know why are naphthalene, acetanilide, benzoic acid, and adipic acid used in calibration of...
Jan24-08 04:42 PM
chemisttree
1 1,540
A stupid question: when we buy gas at the gas station, what is the molecule that makes up the gasoline? (I know there...
Jan24-08 11:47 AM
kdv
2 7,759
Experiments have been done in which one volume of water that is warmer than an identical volume of water freezes...
Jan24-08 11:19 AM
kdv
7 5,182
Someone recently told me that explosives wouldn't work in a hard vacuum, that oxygen is required. Is this true? I know...
Jan23-08 08:56 AM
drcathyc
4 3,215
i was just wondering why salt, when it dissociates into Na an Cl as it is dissolved into water, decreases the freezing...
Jan23-08 06:25 AM
pkleinod
2 4,982
Why there is on earth stronger abundance of light elements. I mean elements that have proton number lower than 30. And...
Jan22-08 04:53 PM
Riogho
3 1,704
I have a project that I want to do; really it is an experiment that would prove useful to another project of mine. ...
Jan19-08 02:50 PM
lilrex
3 4,460
Does anybody know where aspirin becomes active, the stomach or the intestines? Based on a test I performed, I would...
Jan17-08 11:20 AM
chemisttree
6 9,717
I have been working on carrying out a reaction in which i get zinc to oxidize creating fire and smoke. Does anyone...
Jan16-08 10:00 PM
Soley101
4 1,818
I think this is a simple problem to solve, but I keep getting nonsense answers. The question: two reserviors held...
Jan15-08 12:38 PM
Andy Resnick
1 1,927
And the solvent for the reaction is going to be 2.5 liters of ether. :bugeye: I hear the t-buLi becomes an...
Jan15-08 11:08 AM
chemisttree
3 2,033
Hey there everyone! For my chemistry class, I had to write a feature article about the chemistry behind airbags...
Jan15-08 07:56 AM
lightarrow
7 3,872
what would the atomic structures of atoms 117 & 119 look like and what properties would these elements have?
Jan14-08 01:38 PM
Kushal
1 2,012
How do I find the quantity of active ingredient in a commercial ASA tablet, using titration and NaHO? I think that I'm...
Jan11-08 02:58 PM
chemisttree
1 3,251
I have a solution which contains unknown amount of dissolved ferric chloride (FeCl3) and hydrochloric acid. Can I...
Jan11-08 02:15 PM
chemisttree
7 16,892
I'm not sure why, but I could never really picture & grasp this concept. Say you're drawing the orbitals of an atom,...
Jan11-08 11:56 AM
Zarbon
4 2,227
ok, I have no idea. If any one could put this in simple terms it would be greatly appreciated! Thanks
Jan11-08 07:36 AM
Kushal
2 2,760
i want to ask that whether alcohols are acidic or basic or both depending upon the medium???????????????????
Jan9-08 01:44 PM
sadhu
2 1,818
Hi, I was wanting to test garden soil for its phosphorous content. I've seen test kits and electric/chemical kits and...
Jan7-08 04:03 PM
chemisttree
1 3,975
is silicon-oxygen tetrahedron(SiO4) stable or unstable? is there covalent or ionic bonding? Im not sure but i think...
Jan7-08 11:15 AM
chemisttree
2 9,376
I currently have a problem with having 2 small peaks, normally from what I would recall would correspond to 2 fully...
Jan4-08 05:00 PM
chemisttree
3 2,813
Suppose I have an aqueous solution of acetone and ethanol. >While a simple or fractional distillation will do the...
Jan4-08 04:29 PM
jim mcnamara
2 15,226
Hi I'm currently starting to prepare a 15 min preparation on a chemistry topic. The topic I have been chosen...
Jan4-08 11:52 AM
chemisttree
1 1,776
Hi, There are plenty of different types of majors being a Chemist. To work for the Feds and be a Chemist and work...
Jan4-08 12:59 AM
Silex7
7 2,755
Im currently a junior at my highschool, and i am planning on performing an experiment in which i will compare local...
Jan2-08 02:40 PM
eli64
4 12,462
hi all its an RBS ( rutherford back scattering) experiment. a Si3N4 thin film deposit on a Si substrat. we make a...
Jan1-08 04:22 PM
physicist888
7 2,181
how can we convert any given alkane to any other higher or lower alkane without giving rise to any side reactions i...
Jan1-08 05:05 AM
Kushal
1 1,733
When I was in college years ago, I came across this test question: How will the periodic table of elements look...
Jan1-08 05:03 AM
Kushal
1 2,715
Our investigatory project for this year is entitled "The Antimicrobial Effect of Helianthus annuus on Escherichia...
Dec31-07 10:41 PM
Rylynn97
2 2,187

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