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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/...
Apr18-14 03:49 PM
djh101
114 126,691
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
64 136,942
Illegal/Dangerous Activities: Explicit "how to" discussions of illegal and/or dangerous activities, or posts...
Jul31-07 05:03 PM
chemisttree
0 36,458
This question came to mind when studying voltaic cells. In voltaic cells, for some ions (Cu2+ for example), both...
Apr7-14 10:47 AM
Yanick
1 353
My lab group and I are a bit confused. We are doing a lab where we need to calculate the Ksp of calcium hydroxide in...
Apr7-14 10:28 AM
Yanick
2 384
Wiki says that the thorium atom is bonded to 15 hydrogens? How does this even work? Any diagrams on the molecular...
Apr6-14 11:24 AM
SteamKing
1 361
I would like to find the refractive index of a 1M sorbitol solution. Is there any resource out there that lists...
Apr4-14 12:27 AM
Simon Bridge
1 444
I'm using a program for calculating chemical reactions, but I'm not a chemist. I will use the results for a different...
Apr3-14 12:04 PM
Chestermiller
5 480
Hi I tried cooling down some 91% isopropyl alcohol with dry ice. After a few minutes, the alcohol became a thick gel....
Apr2-14 07:24 PM
mishima
5 451
I'm trying to understand how to draw MO diagram for molecules such as CO, HF, and NO. I am finding so much conflicting...
Apr1-14 03:33 AM
DrDu
1 443
This may sound ridiculous to the elite here, but if I had a bottle with 500mL of vinegar where 5% was acetic acid. If...
Mar31-14 06:55 AM
DrClaude
1 385
Ok so entropy cannot be destroyed, right? So let's say you have a reaction that decreases entropy (s<0) but it also is...
Mar31-14 02:30 AM
Borek
3 414
When using ice to keep a room (or in my case, a cooler) cold, one would want it to have a high specific heat capacity...
Mar30-14 01:30 PM
EngSci
0 352
One of my first solubility lessons regarded the great ability of the acetate ion to form a water-soluble salt with any...
Mar29-14 11:19 PM
McSpongy
2 407
We were just going over examples of reaction orders in class and I was told 2 things: 1.) Negative reaction orders...
Mar28-14 10:59 AM
epenguin
4 527
In the Gibbs free energy equation, does the standard change in entropy equal q(sys)/T(system)? Or in math terms:...
Mar28-14 10:13 AM
Chestermiller
4 374
I read on chemwiki that "The Octet Rule requires all atoms in a molecule to have 8 valence electrons--either by...
Mar28-14 08:22 AM
cgk
1 386
If the question is too silly for this forum you can move it elsewhere, but after reading about this in a linguistic...
Mar28-14 05:40 AM
PeroK
7 386
I read somewhere that a dipole is a seperation of two equal but opposite charges. Is this true or can the two charges...
Mar28-14 04:09 AM
Simon Bridge
2 351
From what I have been learning recently, a dipole is a seperation of electric charges and in chemistry, a dipole...
Mar28-14 03:08 AM
marc32123
2 356
Hi there, I was looking into two photon fluorescence microscopy and was amazed at the light intensity required for the...
Mar27-14 11:54 AM
LionFox
0 307
Dear all, Is there anyone know what's difference between macromolecules and supramolecules? Best, Pu
Mar27-14 12:32 AM
aroc91
1 333
There is a container of a fixed volume filled with gas. There is a second container with a piston filled with gas. ...
Mar26-14 05:33 PM
Chestermiller
3 366
Hi all, I purchased this photochromic fluid https://www.youtube.com/watch?v=eay4N-etB3A ...
Mar26-14 03:16 PM
mrcotton
2 346
(I think Chemistry is the best forum to post this) My question is... does infrared ink exist? Also, If you paint...
Mar25-14 10:56 PM
Simon Bridge
9 648
This question has been bugging me and the more I think about it the more confused I get. N2O4 ⇔2NO2 Question:...
Mar25-14 04:42 PM
Yanick
3 357
Does heat affect the rate of an exothermic reaction?? In my point of view it shouldn't affect it since exothermic...
Mar25-14 02:16 PM
Yanick
19 819
And how electrons behave in each separate orbital? I was told that, in case of Boron, electron in 3p orbital will not...
Mar23-14 05:00 PM
DrDu
2 433
I read some books which mention about covalent and partially covalent chemical bonds. However, I cannot distinguish...
Mar23-14 04:49 PM
DrDu
4 409
According to the Molecular orbital theory, diatomic oxygen should have σ2px (internuclear axis) and \pi2py and \pi2pz...
Mar23-14 04:38 PM
DrDu
3 425
Hi, Recently, I made a batch of smoke bombs using potassium nitrate, sugar, and baking soda (to regulate reaction...
Mar23-14 04:38 AM
Borek
1 445
I heard that if Gaussian crashes, you can just resume the calculation by loading the incomplete log file. How do I do...
Mar22-14 07:21 PM
CrimpJiggler
0 392
http://i.imgur.com/oydkAuE.png As you can see, octet rule isn't satisfied for the central atom Xe, it has 2 more...
Mar21-14 07:08 PM
dextercioby
1 406
I can't see why more (s) character hybridised orbitals possesses stronger bond. I just understand that more (s)...
Mar21-14 03:23 PM
sludger13
0 343
Figured this was more a chemistry question than nuclear question, so I put it here. When an atom of tritium in...
Mar21-14 03:13 PM
Borek
2 345
I've learnt that a more active metal displaces a less reactive one. So, according to the reactivity series Ca cannot...
Mar21-14 02:01 PM
Borek
4 423
A question about an anhydride that has nothing to to with acetic acid! How novel! I am not entirely sure I...
Mar21-14 03:49 AM
Borek
5 401
In Standard Hydrogen Electrode why only Platinum electrode should be used and why should it be dipped in HCl?why cant...
Mar20-14 02:59 PM
Borek
1 807
Given the half reaction: 2H2O(l) → O2(g) + 4H+(aq) + 4e- How would you set up the Q equation for this reactions?...
Mar20-14 02:54 PM
DrDu
9 452
density of normal water -1 gm/cm cube and density of soap water -0.9 gm/cm cube. We know that the addition of soap...
Mar20-14 01:34 PM
Borek
2 375
Hello, I hope all is well, I have a few questions regarding fluorescence spectral corrections. I have run into an...
Mar19-14 06:35 AM
amattiol
0 318
I am trying to understand the best way to dehydrate water from a liquid slurry fruit and vegetable blend, without...
Mar19-14 05:41 AM
Straw_Cat
2 512
Is there a force between a particle of ionic compound? (such as salt) (image that I uploaded), I know that there are...
Mar18-14 04:26 PM
Borek
4 450

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