Using the given data, calculate the rate constant of this reaction

constant-reaction

#1

1.Using the given data, calculate the rate constant of this reaction.

A+B---------> C+D

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2.The rate constant for this first-order reaction is 0.340 s–1 at 400 °C.

A------> Products

How long (in seconds) would it take for the concentration of A to decrease from 0.850 M to 0.260 M?

Answer is not: 7.85 sec

Answer:

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