thechemistrycluster at Yahoo! Groups

Great Mix of New Give Aways! (Nov 20)

leahbrownpops — Sat, 21 Nov 2009 07:12:02 GMT

Hello Everyone! Here is a FRESH selection of stuff members can collect for nothing There is lots to grab in this new Giveaway Mix!

Re: Chemistry practice question

Lance C — Sun, 15 Nov 2009 18:19:28 GMT

Hi, The answer I got is 435.3 nm. Brian, you forgot to multiply by the speed of light and I think your factor of 10 should be (3 - 23 - (-34) + power for speed

Re: Chemistry practice question

BRIAN JENSEN — Fri, 13 Nov 2009 07:50:17 GMT

http://www.astronomynotes.com/light/s3.htm Energy of light = h × f where h is a universal constant of nature called ``Planck's constant'' = 6.63 ×

Chemistry practice question

MD under construction — Thu, 12 Nov 2009 21:50:40 GMT

The energy required to dislodge electrons from sodium metal via the photoelectric effect is 275 kJ/mol. What wavelength in nm of light has sufficient energy

Help

rajesh bhardwaj — Wed, 11 Nov 2009 05:53:59 GMT

I wll be grateful if someone provides me the following paper: Design, synthesis and antidepressant activity of some N2-substituted nalidixic acid

BCBGC-10 Call for papers

John Edward — Sun, 08 Nov 2009 23:51:42 GMT

BCBGC-10 Call for papers The 2010 International Conference on Bioinformatics, Computational Biology, Genomics and Chemoinformatics (BCBGC-10) (website:

Re: Instrumental Analysis

John W — Sat, 07 Nov 2009 05:02:10 GMT

Cylindrical cells to hold samples can be made any desired length that can be accommodated by the particular model of spectrophotometer, with light traveling

Instrumental Analysis

zahra_guitar — Fri, 06 Nov 2009 19:40:08 GMT

in the instrumental analysis , we have a section that relates to the "Sample Containers" or "Sample Holders". Now, I want to know the advantages and

Re: synthesis of aluminum

galopus galopus — Wed, 28 Oct 2009 23:07:45 GMT

2Al + 2KOH + 6H2O --> 2KAl(OH)4 + 3H2 KAl(OH)4 + 2H2SO4 + 8H2O --> KAl(SO4)2-12H2O ________________________________ From: wood1j To:

synthesis of aluminum

wood1j — Wed, 28 Oct 2009 19:54:41 GMT

given the oxidation reduction equation Al + KOH + H2O --> KAl(OH)4 + H2 and the acid base reaction KAl(OH)4 + H2SO4 + H2O --> KAl(SO4)2-12H2O what are the

Re: Balancing equations. In desperate need of help

ludwig_julca_83 — Wed, 28 Oct 2009 17:54:43 GMT

Mn(2+) + H2O2 + 2OH- ---> MnO2 + 2H2O 4Bi(OH)3 + 6SnO2(2-) ----> 4Bi(0) + 6SnO3(2-) + 6H2O Cr2O7(2-) + 14H+ + 3C2O4(2-) ----> 6CO2 + 2Cr(3+) + 7H2O 2Cl- +

Balancing equations. In desperate need of help

ochoaluver09 — Wed, 28 Oct 2009 04:05:17 GMT

How do you balance these equations? I am confused. My professor taught us in away that I had no idea as to how he did it! I swear it sounded like he was

Re: Confused as to where to begin

nathanhaese — Fri, 16 Oct 2009 14:45:08 GMT

Dear Ocho; You will like this. It is simple. Step-1. When Ba(OH)2 completely ionizes, two hydroxide ions, OH-, go into solution for every Ba(OH)2. So, if the

Confused as to where to begin

ochoaluver09 — Fri, 16 Oct 2009 14:00:09 GMT

Ba(OH)2 is a strong base and ionizes completely to barium and hydroxide ions. Calculate the pH of a 0.2 M solution of Ba(OH)2.

Beware (no subject) Sent by hihi.007

Steve_geo1 — Tue, 29 Sep 2009 23:28:31 GMT

Dear Friends: hihi.007 sent a message to this group at 10:25 am. This post contained no message other than a url. This is a highly poisonous url that will