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A certain first-order reaction is 73 percent complete in 65 seconds. Calculate the rate constant for...

A certain first-order reaction is 73 percent complete in 65 seconds.

Calculate the rate constant for this reaction.

____s-1

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Answer #1

time = t = 65 seconds

initial = Ao = 100

remaining = At = 100 -73 = 27

rate constatnt = 1 / t * ln (Ao / At)

                         = 1/ 65 * ln (100 / 27)

                          = 0.020 s-1

rate constant = 0.020 s-1

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