The half life of a first order reaction is 6 hours. How long will it take for the concentration of reactant to change from 0.8 M to 0.25 M ?

The half life a first order reaction is1.7hr.How long will it take for 20% of the reactant to react?

The half life of a first order reaction is 60 min . How long will is take to consume 90% of the reactant?

The half life of a first order reaction is 60 min . How long will is take to consume 90% of the reactant?

The half life period of a first order reaction is 10 minutes . The time required for the concentration of the reactant to change from 0.08 M to 0.02 is :

The half-life period of a first order reaction is 20 minutes. The time required for the concentration of the reactant to change from 0.16 M to 0.02 M is :

The t_(1//2) of a first order reaction is 20 min . How long will it take for reactant concentration to drop from a to a/8?