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April 25, 2015

Homework Help: Chemistry

Posted by Linda on Saturday, February 9, 2013 at 5:25pm.

A 0.100 mol sample of H2S is placed in a 10.0 L reaction vessel and heated to 1132C. At equilibrium, 0.0285 mol H2 is present. What is the value of Kc at this temp?

2 H2S(g) 2 H2(g) + S2(g

After I do my calculations, I get

Kc= (0.0057)2 X (0.00285)/(0.0043)2

and get 5.03 X 10-3

the book says the answer is 2.3 X 10-4

What am I doing wrong?

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