Chemsitry

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For the following equilibrium process:
CO2 + H2 = CO + H2O

The equilibrium concentrations of reacting species are: [CO]= .050 M; [H2]= .045 M; [CO2]= .086 M; [H2O]= .040 M.

(a) Calculate Kc for the reaction
(b) If we add CO2 to increase its concentration to 0.50 mol/L, what will the concentrations of all gases be when equilibrium is reestablished?

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