C2H5Cl(g)---->C2H4(g)+HCl(g) is the first order in C2H5Cl.The rate constant is 1.60 x 10-6/s.In an investigation of the decomposition of C2H5Cl(g), an initial concentration of 0.165 mol/L was used. How many hours will it take for the concentration of C2H5Cl to drop to 0.100 mol/L   What will the concentration of C2H5Cl(g) be after 125 hours?   How many hours will it take for 75% of the C2H5Cl to decompose?

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