The reaction: 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 answer = ? How many hours will it take for 75% of the C2H5Cl to decompose? answer = ? What will the concentration of C2H5Cl(g) be after 125 hours? answer = ?       a. 143 hours b. 0.0603 mol/L c. 0.0803 mol/L d. 241 hours e. 0.0703 mol/L f. 87 hours g. 77 hours

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