Chapter 20, Problem 72AE

(a)

Interpretation Introduction

Interpretation: The rate constant in $s^{-1}$ for a radioactive nuclide that has a half-life of 3.00 hours needs to be calculated.

Concept Introduction: The time taken for the reactant’s concentration to reduce to one half of its initial value is called half-life of a reaction.

(b)

Interpretation Introduction

Interpretation: The decay rate in $\raisebox{1ex}{$decays$}\!\left/ \!\raisebox{-1ex}{$s$}\right.$ for 1.000 mole of a radioactive nuclide that has a half-life of 3.00 hours needs to be calculated.

Concept Introduction: The time taken for the reactant’s concentration to reduce to one half of its initial value is called half-life of a reaction.