Chemistry Practice Problems Identifying Reaction Order Practice Problems Solution: The following reaction was monitored as a function...

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Solution: The following reaction was monitored as a function of time:AB → A + BA plot of 1/[AB] versus time yields a straight line with slope 5.5 × 10 −2 (M⋅s)−1 .a. What is the value of the rate constant (k) for this reaction at this temperature?b. What is the half-life when the initial concentration is 0.56 M ?c. If the initial concentration of AB is 0.240 M, and the reaction mixture initially contains no products, what are the concentrations of A and B after 80 s ?

Problem

The following reaction was monitored as a function of time:

AB → A + B

A plot of 1/[AB] versus time yields a straight line with slope 5.5 × 10 −2 (M⋅s)−1 .

a. What is the value of the rate constant (k) for this reaction at this temperature?



b. What is the half-life when the initial concentration is 0.56 M ?



c. If the initial concentration of AB is 0.240 M, and the reaction mixture initially contains no products, what are the concentrations of A and B after 80 s ?