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Chemistry

Proposed Q&A site for scientists, academics, teachers and students
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2  
I have seen many great physics questions in here, regarding material properties, atomic physics, physical chemistry and solid state physics. Case you don't as them on physics stack exchange. – Bernardo Kyotoku Dec 4 '10 at 9:07
2  
Members of ACS or other professional organizations need to get the news about this SE! SE is very diverse, but these are great sources of specialists. – xenomancer Mar 17 '11 at 15:56
2  
@Bernardo: There's a great deal of overlap between chemistry and other scientific disciplines, including physics, biology, and mathematics. – Bob Murphy Apr 7 '11 at 23:44
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Computational Chemistry, official location?

feb 2 at 16:03 LordStryker 151
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3
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Would biochemistry questions go here or in Chemistry?

apr 27 at 6:04 Aleadam 216

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This proposal is now in the Commitment phase — example questions are locked!

80 Example Questions (10 closed)

active oldest votes
up vote 0 down vote
I've got some house plants. If I feed them twice as much chemicals, will they grow twice as fast? [closed]
added by Bob Murphy Dec 3 '10 at 6:16
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closed as off topic by Yasir Arsanukaev, Fabian, NewName, tryaria, biLOLogy Mar 29 '11 at 19:49

This question does not relate to the topic of the proposal.
It was closed as part of an automated migration of off-topic to close votes on September 29, 2011.

Deliberately off-topic: really a botany question, and too vague even for that. Not to mention the bad grammar. :-) – Bob Murphy Dec 3 '10 at 6:18
up vote 0 down vote
Why is it so difficult to predict the spectrum of peptide fragmentation (given the amino acid sequence) in a mass spectrometer?
added by WikiSpeedia hang-around Dec 20 '10 at 16:38
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(Spectrum: relative abundance of fragments as a function of mass-to-charge ratio.) – WikiSpeedia hang-around Dec 20 '10 at 16:39
Are questions about colliding molecules in the gas phase and the consequence thereof on-topic or off-topic? – WikiSpeedia hang-around Dec 20 '10 at 16:42
My doctoral research in physical organic chemistry involved colliding molecules in the gas phase and the consequences thereof, so I'd hope it's on-topic. :-) – Bob Murphy Jan 15 '11 at 22:54
up vote 0 down vote
How to synthesize silica nanoparticle?
added by Ravisankar S Jan 9 '11 at 13:14
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up vote 0 down vote
How do I electroplate copper onto a sheet of galvanized steel while avoiding the use of toxic chemicals?
added by PleaseStand Jan 11 '11 at 22:58
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up vote 0 down vote
How do anti oxidants added in polymers work?
added by QH7 Feb 12 '11 at 13:08
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up vote 0 down vote
How do detox diets to rid the body of toxic chemicals work?
added by AcidFlask Feb 21 '11 at 5:40
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up vote 0 down vote
What is the thymus gland?
added by Nuha Mar 11 '11 at 19:50
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up vote 0 down vote
What is the acid base balance?
added by Nuha, edited by WikiSpeedia hang-around Mar 12 '11 at 21:40
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up vote 0 down vote
What is the difference between stationary fluids and mobile fluids?
added by Nuha, edited by WikiSpeedia hang-around Mar 12 '11 at 21:40
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up vote 0 down vote
What are equations of state and why are there so many?
added by xenomancer Mar 15 '11 at 17:29
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Very good, on-topic question. They developed over time as measurements and theoretical understanding improved. It's kind of like "why do we need both Newtonian and Einsteinian mechanics". – Bob Murphy Mar 30 '11 at 4:10
up vote 0 down vote
Is it legal to privately synthesise [formula] (in [country])?
added by M'vy, edited by WikiSpeedia hang-around Apr 17 '11 at 18:19
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up vote 0 down vote
What property of acids indicates the degree to which they dissolve? For example, hydrofluoric acid is a weak acid but is very corrosive.
added by Alex B Apr 20 '11 at 2:14
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up vote -1 down vote
What's a photon? [closed]
added by googletorp Jun 9 '10 at 9:20
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closed as off topic by KennyTM, Vortico, Tobias Kienzler, Beska, dthorpe Aug 13 '10 at 0:21

This question does not relate to the topic of the proposal.
It was closed as part of an automated migration of off-topic to close votes on September 29, 2011.

Off-topic, photons are not explained with chemistry, the use or observation of photons in a chemical reaction would be on-topic. – googletorp Jun 9 '10 at 9:21
This would be more physics-related than chemistry. area51.stackexchange.com/proposals/1908/physics – Vortico Jun 10 '10 at 19:45
@Vortica Since it's a very fundamental question I'd prefer it on Popular Natural Science area51.stackexchange.com/proposals/4955/… – Tobias Kienzler Jun 11 '10 at 7:32
Definitely off-topic. However, the way photons promote electrons into higher-energy orbitals, resulting in photochemical reactions that wouldn't occur thermally, is quite interesting. – Bob Murphy Dec 1 '10 at 4:30
Actually, the chemist's definition of what a photon is is very relevant to chemistry - particularly to physical and analytical chemistry. I don't think this is a good example of an off-topic question. – tryaria Mar 1 '11 at 23:08
up vote -1 down vote
Why are all isotopes of technetium radioactive? [closed]
added by KennyTM, edited by WikiSpeedia hang-around Dec 20 '10 at 16:25
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closed as off topic by googletorp, Tobias Kienzler, Vortico, ssakl, dthorpe Aug 13 '10 at 0:20

This question does not relate to the topic of the proposal.
It was closed as part of an automated migration of off-topic to close votes on September 29, 2011.

1  
Radioactivity by itself is not a chemistry question. – googletorp Jun 9 '10 at 22:14
it's rather (nuclear) physics. And to date not entirely answerable – Tobias Kienzler Jun 10 '10 at 7:38
1  
I would argue that this can still be considered chemistry, since many people specifically design molecules with certain isotopes for various purposes in chemistry. Definitely a great "off-topic" example though – David Hollman Aug 31 '10 at 14:24
Despite the current votes (1 on:19 off) and my agreement with the general trend, I feel compelled to point out that Marie Curie won both the Physics and Chemistry Nobels for her work on radioactivity. – AcidFlask Feb 21 '11 at 5:36
1  
This is an important chemistry question when you get into fields outside of pure chemistry - for example geochemistry. One of the major areas of study in geochemistry is based on radioactive decay, so understanding which elements are radioactive, and why, can be considered chemistry. I don't think we should waste one of the five example questions to point out that radiation might be better investigated in physics. – tryaria Mar 1 '11 at 23:10
show 1 more comment
up vote -1 down vote
How would one determine an equation that would calculate the color of a compound given elemental spectroscopy data?
added by Ned Nov 17 '10 at 4:16
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physics question – Bernardo Kyotoku Dec 4 '10 at 8:28
To estimate color, you need a lot of chemical data beyond just elemental spectroscopy. For instance, with organic compounds, you need to know the compound's 3-D molecular structure, and pay particular attention to conjugated pi bonds. – Bob Murphy Dec 13 '10 at 6:48
Question needs some editing. @Bernardo Kyotoku this is actually an important physical and analytical chemistry question. For that matter, it has applications into organic and inorganic chemistry. Just because it deals with light doesn't make it pure physics. – tryaria Mar 1 '11 at 23:23
up vote -1 down vote
What does the AP chemistry test cover? [closed]
added by CrazyJugglerDrummer Dec 4 '10 at 0:56
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closed as off topic by Cody Gray, QH7, Richard Terrett, ogerard, Fabian Apr 16 '11 at 7:23

This question does not relate to the topic of the proposal.
It was closed as part of an automated migration of off-topic to close votes on September 29, 2011.

3  
Everything. :-) – Bob Murphy Dec 13 '10 at 7:05
Seems a bit too obviously off topic. – tryaria Mar 1 '11 at 23:18
up vote -2 down vote
What are molecular formulas and how does one get them? [closed]
added by JFW Nov 11 '10 at 14:20
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closed as off topic by UTChemistry, Bob Murphy, irrelephant, iansinke, Borror0 Jan 16 '11 at 7:19

This question does not relate to the topic of the proposal.
It was closed as part of an automated migration of off-topic to close votes on September 29, 2011.

3  
This is really two different questions. "What are molecular formulas" can be explained in a few minutes. "How does one get them" is very complex and people spend careers on that. – Bob Murphy Nov 30 '10 at 7:07
@Bob Murphy Just because the answer may be long winded doesn't mean that the question is bad. I agree that this should be two questions, but the second does have a standard answer. – tryaria Mar 1 '11 at 23:14
up vote -4 down vote
How is Fortran better than other programming languages for chemistry related calculus?
added by JMin, edited by WikiSpeedia hang-around Dec 20 '10 at 16:27
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This would probably be a good topic for the proposed Computational Chemistry site – David Hollman Aug 31 '10 at 14:26
Thanks, David. I joined the proposal : ). It'd be great to have some place to post all the questions I can't get answers for in class. – JMin Sep 1 '10 at 21:43
up vote -6 down vote
Where can I download [chemistry book]?
added by Svante Sep 15 '10 at 13:14
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Maybe try, free chemistry books, or free resources for learning chemistry. – Radu Nov 4 '10 at 3:12
up vote -12 down vote
How to know when you have good chemistry with your {boyfriend/girlfriend}? [closed]
added by Binoj Antony Jun 17 '10 at 10:08
link|flag

closed as off topic by Douglas S. Stones, Bless, ssakl, dthorpe, Tantalus Nov 16 '10 at 17:56

This question does not relate to the topic of the proposal.
It was closed as part of an automated migration of off-topic to close votes on September 29, 2011.

1  
Intended as off topic. – Binoj Antony Jun 17 '10 at 10:09
1  
avoid silly off topic questions, add only those that are probably asked in the site – Louis Rhys Aug 23 '10 at 7:02
3  
this is a bit ridiculous.... – David Hollman Aug 31 '10 at 13:36
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