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# Determination of Rate Constant from Half-life

APCHEM-JIVF7D

A slow-moving first order reaction is allowed to proceed for a long time. After 51 minutes, one eighth of the original amount of reactant A remains in the reaction vessel.

What is the rate constant of the reaction?

A

17 minutes

B

0.0408/minute

C

1.18/minute

D

245/minute