Chemistry - June 2006

2006-06-09 08:33:22 · 3 answers · asked by William R 1

2006-06-09 07:48:31 · 3 answers · asked by Anonymous

2006-06-09 07:16:10 · 3 answers · asked by Anonymous

2006-06-09 06:39:28 · 9 answers · asked by nicole 1

2006-06-09 05:49:41 · 8 answers · asked by veenu 1

2006-06-09 05:25:49 · 1 answers · asked by PTF 2

i want descover someting of flam but i dont have any books and sites to use and i dont know them .but its very nessesory to have them because for a great article i must search in other discoveries. please guid me.

2006-06-09 05:25:05 · 3 answers · asked by menaskatina_rahoo_21 1

2006-06-09 04:43:51 · 2 answers · asked by Anonymous

if all collisions in a chemical reaction are random,consider the following situation:
A+B---->C+D.
if this reaction is taking place in a closed system,there is a probability that A's random motion might be such that it doesnot encounter the molecules of B at all.So can we say that no chemical reaction is a certainity?

2006-06-09 03:53:17 · 9 answers · asked by barath m 1

The solubility of PbCl2 in water is 0.99 g PbCl2 per litre of solution.
(a) What is the Ksp of PbCl2?
(b) What is the solubility of PbCl2 in 0.5 M lead nitrate solution, expressed in g L-1?
please gie long answer

2006-06-09 03:15:41 · 1 answers · asked by voval99 1

Chloroform can be used to extract caffeine from an aqueous solution. If the distribution
constant for the equilibrium between caffeine dissolved in water and caffeine dissolved in
chloroform is 0.0714, what volume of chloroform will be needed to extract 85% of the
caffeine from 120.0 mL of an aqueous caffeine solution?
please give more detailes.

2006-06-09 03:11:47 · 3 answers · asked by voval99 1

Note that I am not talking about precipitation, I am talking about an uneven distribution of the solute throughout the solvent. That is, you would find that the solution is more concentrated near the bottom than near the top. I'm thinking the reason for any such discrepancy would be gravity, but this puzzles me, so please answer! I don't know if it would affect the answer, but the solution in question is of a shellfish toxin, known as saxitoxin(s), dissolved in 0.003N hydrochloric acid.

2006-06-09 02:48:23 · 5 answers · asked by terryandadriana 2

...but help me with the answer.
why in an element symbol the mass no. is written on the top an atomic no. at the bottom and not the vice versa.
(kind of stupid doubt ? but i want to clarify it. )

2006-06-09 02:38:24 · 13 answers · asked by Anonymous

consider the reaction NaOH+HCl----->NaCl+H2O,
.since all reactions are reversible, will i find salt water turning into an acid & a base.?if so,how?.also , can i carry on such reactions in the lab?

2006-06-09 02:32:18 · 3 answers · asked by barath m 1

2006-06-09 01:16:02 · 6 answers · asked by Vishal 1

if u know then plz mail me the whole porcedure i cant fing anything on the net and plz dont tell me wrong its my class 12th project..........

2006-06-09 00:58:24 · 10 answers · asked by priyanshu2606 2

2006-06-09 00:53:10 · 4 answers · asked by alexander19 2

2006-06-08 23:21:32 · 10 answers · asked by Anonymous

I want a precise and short answer. thanks

2006-06-08 23:17:36 · 5 answers · asked by Raul G 1

2006-06-08 22:24:06 · 7 answers · asked by manav b 1

2006-06-08 22:19:21 · 6 answers · asked by ebay_jamielpd 2

2006-06-08 20:06:27 · 4 answers · asked by chaksunlimited 2

2006-06-08 20:04:58 · 7 answers · asked by inquisitive mind 1

2006-06-08 20:03:11 · 5 answers · asked by Anonymous

what to do with scotchguard protector in this regard?what is it?

2006-06-08 19:22:45 · 3 answers · asked by dinu 1

2006-06-08 19:17:44 · 7 answers · asked by sidharth g 1

2006-06-08 17:18:38 · 12 answers · asked by tom h 3

2006-06-08 16:58:26 · 6 answers · asked by Anonymous

2006-06-08 16:48:48 · 1 answers · asked by darcy_oilkleen 1

a) sodium sulfite + hydrochloric acid
b) sulfuric acid + barium hydroxide
c) ammonium chlorida + sodium hydroxide
d) silver nitrate + sodium chloride

2006-06-08 16:01:26 · 2 answers · asked by kayxren 2