Phosphorus pentachloride decomposes according to the chemical equation PCl5(g)PCl3(g)+Cl2(g)Kc=1.80at250C A 0.2836mol sample of PCl5(g) is injected into an empty 3.65L reaction vessel held at 250C. Calculate the concentrations of PCl5(g) and PCl3(g) at equilibrium. [PCl5]: [PCl3] At a certain temperature, a 10.0-L container holds four gases in equilibrium. Their masses are 3.5gSO3,4.6gSO2,14.5gN2, and 0.98gN2O What is the value of the equilibrium constant at this temperature for the reaction of SO2 with N2O to form SO3 and N2 ? Make sure you balance the reaction using the lowest whole-number coefficients. Kc