- #1
ghostanime2001
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Homework Statement
Keq = 100 at a certain temperature for the reaction
CH4(g) + 2 H2S(g) [tex]\rightleftharpoons[/tex] CS2(g) + 4 H2(g)
Some CH4 and H2S were introduced into a 1.0 L bulb and at equilibrium 0.10 mol of CH4 and 0.30 mol of H2S were found. What was [CS2] at equilibrium?
Homework Equations
[tex]K_{eq} = \frac{[CS_{2(g)}][H_{2(g)}]^{4}}{[CH_{4(g)}][H_{2}S_{(g)}]^{2}}[/tex]
The Attempt at a Solution
I know that I'm not given any information about starting or changing amounts so therefore an ICE table would not work. I think to calculate the [CS2]:
[tex]100 = \frac{
[tex]100 = \frac{s^{5}}{0.009}[/tex]
[tex]s^{5} = 0.9[/tex]
[tex]s = 0.9791[/tex]
But, the answer from the worksheet is 0.323 M. What am I doing wrong. I've arrived at the answer using the right method but the answer is wrong! can you please help point out my mistake. Thanks