Problem: Suppose a 500. mL flask is filled with 1.5 mol of H 2O, 0.20 mol of CO2 and 1.2 mol of H2. The following reaction becomes possible: CO (g) + H2O (g) ⇌ CO2 (g) + H2 (g) The equilibrium constant K for this reaction is 0.223 at the temperature of the flask. Calculate the equilibrium molarity of H2O.

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Suppose a 500. mL flask is filled with 1.5 mol of H 2O, 0.20 mol of CO2 and 1.2 mol of H2. The following reaction becomes possible: 

CO (g) + H2O (g) ⇌ CO2 (g) + H2 (g) 

The equilibrium constant K for this reaction is 0.223 at the temperature of the flask. 

Calculate the equilibrium molarity of H2O.