June 04, 2020, 11:43:47 AM
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### Topic: Equilibrium problem  (Read 539 times)

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#### robstamos

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• Mole Snacks: +0/-0 ##### Equilibrium problem
« on: May 04, 2019, 10:16:26 PM »
Consider the following balanced chemical equation:

CH4(g) + H2O(g)  ⟷  CO(g)  + 3 H2(g)

A reaction mixture initially contains 3.1 M CH4 and 1.90 M H2O.  Determine the equilibrium concentration of CH4 if Kc for the reaction at this temperature is 2.10 x 10-5.

I know how to start this problem, just having trouble finishing it.

When solving after using the quadratic formula I get 3.1 = 27x^4 and 1.9 = 27x^4; however, after solving for x neither of these are correct. The final right answer is x = 0.0463 and the equilibrium concentration of CH4 is 3.0537. Does anybody have an idea of where I'm going wrong here?

#### AWK

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• Gender:  ##### Re: Equilibrium problem
« Reply #1 on: May 05, 2019, 01:32:23 AM »
AWK