Map General Chemistry 4th Edition McQuarrie Rock Gallogly University Science Books presented by Sapling Learning Phosphorus pentachloride decomposes according to the chemical equation K .80 at 250°C A 0.172 mol sample of PC15(g) is injected into an empty 2.20 L reaction vessel held at 250°C. Calculate the concentrations of PCl5(g) and PCl3(g) at equilibrium. Number PCI Number