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The reaction A → B + C is known to be first order in A. Below...

The reaction A → B + C is known to be first order in A. Below are data showing the concentration of A as a function of reaction time.

Time, h [A], M
0 2.50 x 10^-1
1 2.21 x 10^-1
2 1.95 x 10^-1
4 1.52 x 10^-1
8 9.23 x 10^-2
10 7.19 x 10^-2
12 5.61 x 10^-2

(a) What is the average rate of reaction between 1 and 4 h? Report the units as well as the numbers.

(b) Plot the data above, showing the concentration of A as a function of the time. From your graph, determine the instantaneous rate of reaction at 8 h. Report the units as well as the numbers.

(c) Plot ln [A] versus time. Estimate the rate constant for this first-order reaction from your graph. Report the units as well as the numbers

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