(Answered) Phosphorous pent chloride gives an equilibrium mixture of

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Phosphorous pent chloride gives an equilibrium mixture of PCl5, PCl3and Cl2when heated.PCl5(g)PCl3(g) + Cl2(g)

A 1.00-L vessel contains an unknown amount of PCl5and 0.020 mol each of PCl3and Cl2 at equilibrium at 250 ⁰C. Calculate the moles of PCl5 in the vessel if Kc for this reaction is 0.0415 at 250 ⁰C.

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