|
More site info...
Chemical Forums: Chemistry Forum, Chemistry... - www.chemicalforums.com | Site profile
|
|
Site profile page for http://www.chemicalforums.com.
This report page has aggregated and summarized the online discussions from the Message Board located at http://www.chemicalforums.com.
This site profile page outlines general site statistics such as: Users Activity, Site Activity, Site Rank, and Top Authors, which are reported in either a table or graph below for a given reporting time period.
Additional site profile information for http://www.chemicalforums.com is also shown in the following divisions:
1) Top 10 Active Forums during Last Week
2) Top 10 Site Forums
3) Latest Active Threads
4) Hot Threads for Last Week
Warning: These statistics are generated using 'best efforts' and can experience delays and reporting errors at times. Please note that such statistics do not constitute a site's popularity and/or exact posting volumes at any given reporting period.
|
|
|
|
|
Posting activity table on Chemical Forums: Chemistry Forum, Chemistry Question, Chemistry Help:
|
|
Week
|
Month
|
3 Months
|
|
Threads:
|
364
|
1,514
|
3,771
|
|
Post:
|
1,003
|
3,577
|
8,879
|
|
|
Authority Badge:
|
|
|
BoardReader Authority Badge code for Chemical Forums: Chemistry Forum, Chemistry Question, Chemistry Help (http://www.chemicalforums.com)
|
|
Put this code anywhere on your forum page:
|
|
|
|
|
|
|
|
Rating - The position measured by activity among all forum sites tracked by BoardReader.
If rating is 10 there are 9 forum sites which have higher activity.
Posts - Number of posts on forum site during last 7 days.
Threads - Number of threads on forum site active during last 7 days.
Authors - Number of authors which contributed to the site within last 7 days.
|
|
|
|
|
Chemical Forums: Chemistry Forum, Chemistry Question, Chemistry Help posting activity graph:
|
|
http://www.chemicalforums.com Alexa graph:
|
Top authors on Chemical Forums: Chemistry Forum, Chemistry Question, Chemistry Help during last week:
user's latest post:
Yield/Purity of Alum
Published (2009-11-11 21:18:00)
You started with 1.15g of alum? So how come alum is the product?
user's latest post:
How can you prevent a test tube...
Published (2009-11-08 09:01:00)
It cracks from a difference in temperature changes causing internal forces since part of it expands at a different rate, or something to that effect. You must be doing thermite in it or something, because with a test tube of decent quality you can put it in a propane torch flame and it doesn't shatter. Use knew ones that haven't been treated with any significant amount of heat - nearly melting glass can seriously ruin its...
user's latest post:
Octahedral Transition metal...
Published (2009-11-11 05:44:00)
No, there are only two possibilities: one with low spin and one with high spin. T 2g 5 E g 1 would be an excited state, not the ground state. Look at this picture taken from http://en.wikipedia.org/wiki/Crystal_field_theory Up you have E g , down you have T 2g . On one hand, putting 2 electrons into the same orbital (on with spin +1/2, the other one with spin -1/2) cost more energy than putting them into two distinct orbitals with the same...
user's latest post:
An interesting Reaction
Published (2009-11-11 10:32:00)
Quote Also, if water is catalytic water is catalytic... geez. I meant if acid is catalytic... (smacks self on head)
user's latest post:
Lab Equipment
Published (2009-11-11 19:32:00)
Haven't thought of trying. Don't know if they're made out of anything special. Could give it a go I suppose!
user's latest post:
R-S designation of Chiral...
Published (2009-11-11 11:07:00)
I think the point should be that chiral centers only exist if the molecule is chiral. So in fact chiral center ≠ asymmetric center!
user's latest post:
R-S designation of Chiral...
Published (2009-11-11 09:28:00)
Quote from: Scatter on Today at 08:28:27 AM Semantics semantics. A chiral center IS a stereogenic center, but a stereogenic center is not necessarily a chiral center. An asymmetric carbon is a stereogenic center, but also not necessarily a chiral center. So... stereocenter is the best general term to use to describe asymmetry? Stereogenic centre is a more general term which includes "chiral" or...
|
|
|
Top 10 active forums on Chemical Forums: Chemistry Forum, Chemistry Question, Chemistry Help during last week:
|
|
Top 10 forums on Chemical Forums: Chemistry Forum, Chemistry Question, Chemistry Help:
|
|
|
|
Latest active threads on Chemical Forums: Chemistry Forum, Chemistry Question, Chemistry Help:
Started 1 day, 15 hours ago (2009-11-11 13:11:00)
by nj_bartel
http://www.chemicalforums.com/index.php?topic=3138 9.0
Started 1 day, 16 hours ago (2009-11-11 12:19:00)
by The Cancer Curer
Sorry for the double post, but I thought I would add something since I was reading up on this. This doctor found a way to stop the attachment of FGF-2 to peptide bonds on the bilayer of cells due to the presence of a "help" signal. Therefore, the attachment to the FGF-2 by his drug, disables the FGF-2 to attach to the peptide bonds to tell the cell to divide and multiply. Here is another link, ...
Started 18 hours, 59 minutes ago (2009-11-12 09:45:00)
by Borek
You have to know it, just like you know Ca 2+ . Do you know formula of phosphoric acid?
Started 2 days ago (2009-11-11 03:46:00)
by Borek
Question is not stupid, but impossible to answer. Depends on zillions of unpredictable factors. 0.7m sounds dangerously close, but I had similar mixture exploding in plastic tube I held in my hand - and I am not blind nor fingerless, so obviously if you are lucky you can survive intact. But that was a stupid mistake on my side and a lesson that I remember very well, I would not try the same for...
Started 1 day, 11 hours ago (2009-11-11 16:55:00)
by The Cancer Curer
Actual Yield (in grams) x 100% = Percent Yield Theoretical Yield (in grams)
Started 1 week, 6 days ago (2009-10-30 16:18:00)
by eugenedakin
Hello elliotyang, Could you provide an example to help us understand your specific question? Thanks for your help, Eugene
Started 18 hours, 58 minutes ago (2009-11-12 09:46:00)
by rahulrana680
in nuclear reaction some mass is lost and is converted into energy..so final mass is less than the initial mass. initial mass - final mass = mc.c
Started 19 hours, 13 minutes ago (2009-11-12 09:31:00)
by JGK
for those of us without telepathy or other such extra-sensory talents it would help if you had added a description of the actual experiment. If you telll us what answer you chose and why, you should get some help (read the rules!)
|
|
Hot threads for last week on Chemical Forums: Chemistry Forum, Chemistry Question, Chemistry Help:
Started 1 week ago (2009-11-06 01:35:00)
by Ulfsaar
The amino attact the epoxide ?then the HBr generate carboncation?and the C=C make an addition?
Started 1 week ago (2009-11-06 01:54:00)
by Borek
Write Nernst equation for both reactions, calculate formal potential for neutral solution.
Started 6 days, 8 hours ago (2009-11-06 19:49:00)
by UG
To provide a path for movement of ions to complete the circuit, the ions compensate for the increasing positive and negative charges in the anode and cathode.
Started 6 days, 11 hours ago (2009-11-06 17:23:00)
by IndieSci
At what temperature? Are you sure that you are comparing both methanol and ethanol at the same temp?
Started 3 days, 5 hours ago (2009-11-09 23:08:00)
by cth
Should there be a reaction between those chemicals? You have an acid, HCl, but no base to react with. In water, they will just dissociate into anions and cations, for example NaI Na + +I - . Sorry, I can't see anything more.
Started 6 days, 22 hours ago (2009-11-06 06:41:00)
by cth
Quote from: Entrigued on Today at 06:08:33 AM I think it causes more propulsion given that it is a much stronger oxidizing agent. HCl is acid, but it isn't an oxidant. HCl is a stronger acid than acetic acid, so its reaction with NaHCO 3 will proceed faster: HCl + NaHCO 3 NaCl + H 2 O + CO 2 releasing CO 2 as a gas. It depends on the concentrations used, but expect this reaction ...
Started 3 days, 20 hours ago (2009-11-09 08:30:00)
by catalyst
I like that solution. Although it doesn't make me want to visit Mirrorland half as much as Wonderland. Is there a real solution to this question or is it all for fun? Assuming that we are in a world made up of protons and electrons rather than antiprotons and positrons, we could assume that the air is made up of exactly the opposite formula that it is in our world. Instead of a mostly ...
Started 1 day, 11 hours ago (2009-11-11 16:55:00)
by The Cancer Curer
Actual Yield (in grams) x 100% = Percent Yield Theoretical Yield (in grams)
Started 2 weeks, 1 day ago (2009-10-29 03:43:00)
by Borek
Not sure what you are asking about - Li + is in many aspects similar to Na + , K + and so on - after all, it is just a cation of alkali metal. Almost all salts are made of metal cation and acid anion. Almost all salts, as protonated amines are not metals.
Started 3 days, 19 hours ago (2009-11-09 08:58:00)
by Yggdrasil
It would depend on the kinetics of the reaction. If the reaction proceeds extremely slowly at the storage temperature, you would not be wrong to assume negligible amounts of A and B are present. For example, you could say that there is an equilibrium between diamond and graphite (favoring graphite) because these two allotropes of carbon can interconvert. However, if you store a piece of ...
|
|
Size: 145 bytes
