Chapter 11, Problem 54E

(a)

Interpretation Introduction

Interpretation: The rate law reaction of decomposition of $\text{NOBr}$ and half-life is given. The rate constant for the given value of half life is to be calculated. Also, the time required for the given change in the concentration of $\text{NOBr}$ is to be calculated.

Concept introduction: The change observed in the concentration of a reactant or a product per unit time is known as the rate of the particular reaction. The differential rate law provides the rate of a reaction at specific reaction concentrations.

To determine: The rate constant for $\text{2}\text{.00}\text{s}$ half life.

(b)

Interpretation Introduction

Interpretation: The rate law reaction of decomposition of $\text{NOBr}$ and half-life is given. The rate constant for the given value of half life is to be calculated. Also, the time required for the given change in the concentration of $\text{NOBr}$ is to be calculated.

Concept introduction: The change observed in the concentration of a reactant or a product per unit time is known as the rate of the particular reaction. The differential rate law provides the rate of a reaction at specific reaction concentrations.

To determine: The time taken by $\text{0}\text{.900}\text{M}$ $\text{NOBr}$ to decrease to a concentration to $\text{0}\text{.100}\text{M}$.