Chapter 25, Problem 25.67QP

(a)

Interpretation Introduction

Interpretation:

The reason for hydrogen peroxide stored in dark bottles and the amount of oxygen gas produced from the given amount of hydrogen peroxide has to be given.

To give: The reason for hydrogen peroxide stored in dark bottles

Decomposition of hydrogen peroxide

${\text{2H}}_{\text{2}}{\text{O}}_{\text{2}}{}_{\left(\text{aq}\right)}\to {\text{2H}}_{\text{2}}{\text{O}}_{\left(\text{l}\right)}\text{+}{\text{O}}_{\text{2}}{}_{\left(\text{g}\right)}$

(b)

Interpretation Introduction

Interpretation:

The reason for hydrogen peroxide stored in dark bottles and the amount of oxygen gas produced from the given amount of hydrogen peroxide has to be given.

To calculate: The amount of oxygen gas produced from 15 g of 7.5 percent of hydrogen peroxide