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Consider the following reaction. PCl5 <--> PCl3 + Cl2 The concentrations of the products at equilibrium...

Consider the following reaction. PCl5 <--> PCl3 + Cl2 The concentrations of the products at equilibrium are [PCl3] = 0.110 M, and [Cl2] = 0.210 M. What is the concentration of the reactant, PCl5, at equilibrium?

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Answer #1

                                     PCl5 <--> PCl3 + Cl2

                                      0.32          0.11   0.21

at equilibrium concentraction of reactans is equal to comcentration of products

[PCl5]   = [PCl3] + [Cl2]

            = 0.11 + 0.21

[PCl5]   = 0.32 M

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