Question

For the second-order reaction below, the rate constant of the reaction is 9.4  10–3 M–1s
–1
. How long (in seconds) is required to decrease the concentration of A from 2.16 M to 0.40 M?
2A → B rate = k[A]2
a. 2.0 x 101s
b. 7.8 x101s
c. 1.8x101s
d. 1.9 x101s
e. 2.2 101s

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