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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/...
Y 03:49 PM
djh101
114 126,519
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
64 136,739
Illegal/Dangerous Activities: Explicit "how to" discussions of illegal and/or dangerous activities, or posts...
Jul31-07 05:03 PM
chemisttree
0 36,397
OK folks, first of all, let me thank those of you who have helped me with previous questions.... perhaps this is why...
Feb18-14 06:24 AM
skaai
2 474
Hi i have a question regarding the connection between Le chatelier and Waters self Ionization. I'd really appreciate...
Feb18-14 03:26 AM
christian0710
2 475
Which is a better flocculant for water purification, aluminium or ferric sulfate? (I feel the latter might have the...
Feb17-14 03:07 PM
PraAnan
4 1,021
The equation is balanced, but would it actually work? NaOCH3 + CO2 + H2O → NaHCO3 + CH4O Or would the reaction...
Feb17-14 02:17 PM
Big-Daddy
5 522
Hello, I'm attempting to restore my Plasma Sciences CrC-150 Sputtering system, and I'm having a terrible time...
Feb15-14 07:05 PM
Mike_In_Plano
1 572
example .....Co2 and No2
Feb15-14 02:08 PM
Borek
3 446
Dear friends, I was wondering what would be the necessary amout of energy to pull out the closest electron of an...
Feb15-14 03:25 AM
Borek
2 423
So I know that in sp3d hybridization, the orbitals combine and make 5 lobes each one is an sp3d lobe. What does each...
Feb15-14 12:35 AM
Tclack
0 418
Hello, I am confused about the following scenario. Suppose I have the reaction CO (g) + 2H2 (g) → CH3OH (g) ...
Feb14-14 12:14 PM
Adithyan
1 363
Hello everyone, I'm really confused. Here is a equation CO2 + H20 <----> H2CO3 <-----> H+ + HCO3- *...
Feb14-14 08:42 AM
sameeralord
6 487
Hi I have a question regarding Molecular orbital theory: Is it correctly understood that if we combine 2 or more...
Feb12-14 02:04 PM
DrDu
5 463
I find it strange that Aluminum is high on the activity series but does not react with evolution of hydrogen with many...
Feb12-14 10:45 AM
kq6up
3 421
I had two griffin beakers with 200mL of used photo fix solution on magnetic stirrers ready for electrolysis only to...
Feb11-14 06:20 PM
mesa
19 977
In general, we heat CaCO3 to temperature of approximately 825C it decomposes into calcium oxide and liberates carbon...
Feb10-14 02:37 PM
makky2008
4 505
Hi, I was reviewing some of my notes and was wondering what the correct steps for this would be (assuming in...
Feb9-14 06:44 PM
MathewsMD
3 436
Greenhouse gases absorb and then re-emit the heat energy of infrared rays which have been partially absorbed and then...
Feb9-14 05:44 AM
snorkack
1 448
Hello, I was wondering if there is a systematic procedure to follow when naming complex organic molecules...
Feb8-14 11:17 PM
fakecop
0 415
Hi, Under standard conditions, why does water have higher entropy than helium? Isn't helium a gas? I understand...
Feb8-14 10:47 PM
mfb
1 352
Hi, I was wondering, how is it possible that different gases can have the same average kinetic energy???(at same...
Feb8-14 07:52 PM
Ygggdrasil
2 357
Hello Folks, In the attached graph, I have data logged relative humidity (RH) and temperature within my Hiscox and...
Feb8-14 05:35 PM
cjweber
0 323
Hello all, I am a newbie to this site and have found some interesting discussions herein, so I thought it worthwhile...
Feb8-14 04:43 PM
cjweber
0 371
In aromatic compounds ,it is stabled because \pi electrons are delocalised.But why in antiaromatic compounds...
Feb8-14 12:49 PM
DrDu
3 348
Hi, I'm trying to understand how to explain what the molal boiling point constant is, from interpreting the units...
Feb6-14 01:25 PM
Borek
1 380
Why is a substance with an endothermic heat of solution able to dissolve? Is it due to the activation energies...
Feb5-14 02:11 AM
Borek
1 434
What is the difference between "Gas Phase Ion Chemistry" and "Plasma Chemistry"? If one wants to learn about the...
Feb4-14 01:35 PM
maajdl
3 433
Silicon has 14 electrons, this means if it fills up its first two shells it will have 4 electrons in the outermost...
Feb4-14 12:08 PM
SteamKing
3 430
I've seen online that you can get a handful of your ashes sent into space for a hefty fee1 and it got me thinking......
Feb3-14 08:21 PM
mesa
3 438
what is actually meant by gibbs free energy and what is the difference between gibbs free energy and activation...
Feb3-14 11:05 AM
Adithyan
1 466
Hello, I am currently studying intro to thermochemistry. I noticed in some problem solutions the equation...
Feb3-14 09:44 AM
Sunfire
2 386
A relatively easy question regarding hybridized orbital (keep getting confused for some reason): What is the...
Feb3-14 01:43 AM
DrDu
3 484
Hello Everyone, I am working with CaCO3. I want to have the precipitated CaCO3 in the laboratory. The easy way is...
Feb2-14 10:37 PM
duke656
2 431
Hi, I was wondering when you need to write the decomposition of a substance, how do you know if the number is going to...
Feb1-14 05:25 PM
Bananas40
1 346
Hi everyone, In my school I was given a problem. It's that Cr2O7-2 + H2S in a acidic medium. And my teacher told...
Feb1-14 02:51 AM
Borek
7 414
I'm wondering what happens in a single displacement reaction if the displacing metal (the one that's going into the...
Jan31-14 03:31 PM
Borek
1 518
So today I came across this question: 2) CHEMISTRY Multiple Choice Which of the following statements is NOT true: ...
Jan31-14 03:28 PM
Borek
1 370
Hello, I have been measuring quantum yields in the lab for quite some time and have occasionally been running into...
Jan31-14 12:42 PM
DrDu
1 318
I'm currently trying to re-familiarize myself with chemistry, after a very long absence of any study in this field. At...
Jan31-14 11:49 AM
Borek
5 432
Hi everyone. I'm doing some research into the nano modification of structural adhesives (glues), particularly acrylic...
Jan31-14 10:01 AM
Studious_stud
0 352
In anodization of aluminium,the aluminium object to be oxidized is the anode,the electrolyte is dilute sulfuric acid...
Jan30-14 04:03 PM
Borek
5 449
If ##ΔG_{sys} = ΔH_{sys} - TΔS_{sys}; ΔS_{sys} = \frac {-ΔH_{surr}}{T} ## Then, doesn't this expression just...
Jan30-14 12:37 PM
Ygggdrasil
3 402

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