An equilibrium mixture of the above system was found to

Question

4HCl(g)+O2(g)?2H2O(g)+2Cl2(g)

Kc=357

An equilibrium mixture of the above system was found to contain the following concentrations: HCl(g) = 0.35 mol/L, O₂(g) = 0.078 mol/L and H₂O(g) =1.2 mol/L. The equilibrium concentration of Cl₂(g) is calculated to be _______ mol/L