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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
64 151,611
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
115 143,120
Illegal/Dangerous Activities: Explicit "how to" discussions of illegal and/or dangerous activities, or posts...
Jul31-07 05:03 PM
chemisttree
0 40,253
Why is it that change in enthalpy (h=e + pv) depends upon pressure as they say, we should measure at standard...
Nov24-10 07:44 AM
Zeppos10
32 9,826
Hi I was wondering why wet paper doesnt burn and I believe its something to do with the ignition point Is it...
Dec5-10 09:56 AM
dorebase2006
13 6,481
When water is boiled, and the dissolved oxygen that was in the water escapes, why does this raise the entropy of the...
Nov26-10 12:26 AM
igurmendez
15 3,895
This might be a stupid question, but it has me kind of confused. In diffusion, molecules will flow from high...
Nov21-10 08:49 AM
Borek
6 1,065
Is it true that the Forces between particles determined as follows: 1)Molar mass 2)Polarity 3)Surface area ? ...
Nov23-10 08:06 AM
omni
2 3,139
Hi all, For a while now I have been searching for an electrically conductive material which is also UV transparent....
Nov22-10 01:56 AM
DrDu
2 2,393
I got some concentrated H2SO4 on my lab coat on monday and when I left the lab there was only a brown stain on the lab...
Nov22-10 03:31 PM
chemisttree
7 4,024
So, let's say we have an elementary reaction: 2A --> C The rate of this reaction is (according to IUPAC:...
Nov21-10 06:45 AM
Amok
4 2,657
Hello; I don't understand the symbols drawn on this diagram; ...
Nov20-10 09:13 AM
Borek
3 2,672
We just started learning this in chem, and I thought it was quite simple. I missed the particular lecture, and am now...
Nov27-10 12:49 PM
hawkingfan
7 2,651
And how does it make metals better conductors? Is it because the free electrons move charges around better than things...
Nov21-10 09:11 PM
waxon
1 3,038
Why does a can of soda "explode" when it's shaken? I looked online, but all the explanations were either very...
Nov23-10 10:30 AM
Robot B9
10 3,674
I was interested in knowing if my thoughts on this are right or if anyone else has any other thoughts on the reaction...
Nov24-10 08:47 PM
DDTea
5 10,564
Hi, can anyone tell me what the electron densities of Carbon Strontium water calcium are? i cant find it anywhere...
Dec4-10 02:36 PM
Borek
4 1,382
How do we name cyclohexene with E/Z configuration? This compound is symmetric w.r.t. the double bond.
Nov24-10 03:51 AM
zorro
5 8,557
Assuming that super-heavy atoms were stable (at least up to 118), what would be some interesting chemical properties...
Nov25-10 02:15 AM
DrDu
5 3,463
i know the rules of increasing and decreasing atom sizes down and across the periodic table. however, i have met one...
Nov26-10 06:09 AM
sjb-2812
9 5,821
I used a propane gas tank to add thermal storage to my out door wood burner. The ethyl mercaptan residue mixed...
Nov25-10 08:01 PM
Igloozz
6 2,234
In an experiment, 7g benzoic acid is dissolving to 350ml distillated water in 500ml conical flask at 60C for a period...
Nov27-10 07:27 AM
freedom856
9 5,942
I've come across many equations of state in physical chemistry. (only a fraction of those that actually exist) Does...
Dec3-10 02:12 AM
DrDu
3 2,507
today I was cleaning out my fiances hamster cage, we had a hamster in there before, and long story short, we had to...
Nov28-10 05:48 PM
chemisttree
3 12,770
i got this equation:2c2h2+5o2->4co2+2h2o how i Calculate how many grams of C2H2 and how many mol of O2 are...
Nov28-10 03:57 AM
Borek
1 2,222
Hey, 3)4Cl2]Cl I don't understand how there isn't just one mole of Cl- ions formed when you dissolve one mole...
Nov29-10 04:05 AM
bluepen
2 3,574
I'm just starting an Organic Chemistry course, and I'm completely confused by this problem. It says that the...
Dec4-10 09:28 PM
Galap
7 16,644
i was wondering the polarity of ethyl acetate and nitrobutane, which one is more polar? As i face this question in...
Dec4-10 09:15 PM
Galap
8 4,507
I'm looking at older exam questions. If you mix 5 kg of water, with temperature 20 cel with 1kg of steam, with...
Dec1-10 03:12 AM
Borek
2 1,749
Is their a method for predicting the molecular shape of molecules without drawing the Lewis structure? I am...
Nov28-10 04:57 PM
DDTea
3 2,795
why do acids and bases dissociate into ions while in water?
Nov30-10 02:05 PM
Borek
3 2,587
Click here for question. Question 33. The atomic Radii of Iodine is much larger than Chlorine hence the bond...
Dec2-10 10:30 PM
elemis
2 1,993
hi guys I want to do wet etch(not dry etch) to remove Silicon Nitride(thickness:200A) on InGaAs samples by using...
Nov30-10 05:12 AM
compound
0 2,035
Sorry this is a really basic question but I'm studying for a chemistry exam which spans about 4-5 chapters and I don't...
Nov30-10 01:44 PM
Mu naught
2 1,569
First off I have to say that I'm not much of a chemist, so there's probably something elementary I've missed here....
Dec3-10 03:44 AM
Kevin VdM
10 3,233
http://img443.imageshack.us/img443/6488/mechanisma1.png The magnesium transfers an electron to the C-X bond, yielding...
Dec2-10 11:36 PM
chemisttree
2 2,887
Please explain Bent's Rule with detailed examples for me. The description on Wikipedia seems confusing, thus rather...
Dec2-10 06:13 AM
dorebase2006
0 1,937
I looked up the median income for a PhD research chemist and it was a paltry $66,000. I'm planning on going to grad...
Dec2-10 11:44 PM
Dr Lots-o'watts
3 7,148
Hi folks, can someone please point out how Atkin got the following relative velocity A-B equation: see attached file....
Dec3-10 07:15 AM
mccoy1
10 1,700
Hey, The decomposition of A is first order, and is monitored. The following data are recorded: t / min 0 ...
Dec4-10 09:17 AM
Borek
2 2,065
Does anyone know what the chemical composition of cabbage is??? I've looked all over the internet and cant find ANY...
Dec7-10 01:04 AM
chemisttree
7 6,130
How did he determine that there were 6.022E23 atoms in 12g of carbon?
Dec5-10 03:20 AM
Borek
4 1,594
Hello, My question is regarding sample preparation of biofilm for raman microscopy. In the past, I have used a...
Dec5-10 10:29 PM
newlabguy
0 2,571

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