Chapter 10, Problem 10.82E

Interpretation Introduction

Interpretation:

The time required for the amount of the given element to reduce from $5.0\text{g}$ to $1.25\text{g}$ is to be predicted.

Concept introduction:

The time required for the concentration of the reactant to reduce to half of its initial concentration gives the half-life of the reaction. The half-life of the reaction depends on the initial concentration of the reactant except for the first order reaction.