Hydrogen reacts with chlorine gas to form hydrogen chloride: H2(g) + Cl2(g) = 2HCI(g) Kc = 4.0×104 at 47°C. If a mixture of o.0257 M H2, 0.0392 M Cl2, and 1.50 M HCl is allowed to equilibrate at 47°C, what is the equilibrium composition of the mixture?

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