Homework Help: Chemistry

Posted by Jordan on Friday, March 15, 2013 at 11:47am.

2A(aq)-> B(aq) +C(aq)
Initial concentration of A and B is 1.00 M, with no C. Kc = 0.200
find equilibrium concentrations

Chemistry - Devron, Friday, March 15, 2013 at 2:25pm
A=0.200

Can not show work; it will not let me post it.
Chemistry - Devron, Friday, March 15, 2013 at 2:28pm
kc=0.200=C*B/A=C*(1.00 M)/(1.00 M)

C=0.200 M
A=1.00 M
B=1.00M

Sorry for the typo.
Chemistry - DrBob222, Friday, March 15, 2013 at 9:16pm
I don't buy Devron's solution.
..........2A ==> B + C
I........1.00...1.00..0
C........-2x.....x....x
E.....1.00-2x..1.00+x..x

Kc = 0.200 = (B)(C)/(A)^2
0.200 = )1.00+x)(x)/(1.00-2x)^2
Solve for x and evaluate 1-2x and 1+x
Chemistry - Devron, Friday, March 15, 2013 at 10:06pm
Read the problem wrong. The key words were, "initial concentration." I apologize, it was still early.
Chemistry - DrBob222, Saturday, March 16, 2013 at 12:17am
Devron, you're absolutely right and I thought that's what you did. I've made the same error but not recently.

Related Questions

chemistry - following equilibrium system with a Kc of 1.23E-03: C3H6O (aq) + ...
chemistry(please check) - Just made it a new post didnt what it to get ...
Chemistry(Please check, thank you!) - I completed a lab to find the ...
Chemistry(Urgent, please check) - I completed a lab to find the determination ...
Chemistry(Please check) - I completed a lab to find the determination of Kc. I ...
Chemistry - An equilibrium that would favour the products is A. NH4+(aq) + H2PO4...
Chemistry - An equilibrium that would favour the products is A. NH4+(aq) + H2PO4...
Chemistry - EQUILIBRIUM: To prepare the standard solution, a very large ...
chemistry - Could you help me complete these equations. I can balance them after...
AP Chemistry - 100. mL of 0.020 M CaCl2(aq) is added to 200. mL of 0.20 M K2SO4...

For Further Reading

First Name:
School Subject:
Answer: