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Chemistry

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Phosphorus pentachloride decomposes according to the chemical equation

PCl5(g) <-> PCl3(g)+Cl2(g)
Kc=1.80 at 250 degrees Celsius

A 0.222 mol sample of PCl5(g) is injected into an empty 3.25 L reaction vessel held at 250 °C. Calculate the concentrations of PCl5(g) and PCl3(g) at equilibrium.

PCl5=________M
PCl3=________M

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