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chemistry

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At high temperature, 2.00 mol of CH2O was placed in a 4.00 L container where it decomposed via the equilibrium CH2O(g)<=>CO(g)+H2(g) . At equilibrium, the concentration of CO was measured to be 0.0317 M. What is Kc for this reaction at this temperature?

  • chemistry - ,

    M CH2O = 2.0/4.0 = 0.50M
    ........CH2O ==> H2 + CO
    I.......0.50M......0....0
    C..........-x......x....x
    E.......0.50-x......0.0317M
    Now fill in the table.
    x must be 0.0317 and 0.50-x = 0.468

    Substitute in Kc expression and solve for Kc.

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