Phosphorus pentachloride decomposes at high temperatures. PCl5 = PCl3 + Cl2 An equilibrium mixture at some temperature consists of 3.56 g of PCl5 , 4.86 g of PCl3 , and 3.59 g of Cl2 in a 1.00-L flask. What will the concentration of PCl5 be when equilibrium is reestablished after addition of 1.31 g Cl2?

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Q: What will the concentration of PCI5 be when equilibrium is reestablished after addition of 1.31 g…

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Q: What will the concentration of PCl5 be when equilibrium is reestablished after addition of 1.31 g…

A: Hence the answer is  0.015 moles/L

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