Question

Half life equation for first order reactions t1/2 = 0.693/kwhere t1/2 is the half life in second and k is the rate constant ininverse seconds

A what is the half life of a first order reaction with a rateconstant of 5.10 * 10^-4/s

B what is the rate constant of a first order reaction that takes6.10 minutes for the reactant concentration to drop to half of itsinitial value

C a certain first order reaction has a rate constant of5.10*10^-3/s how long will it take for the reactant concentrationto drop to 1/8 of its initial value