Chapter 12, Problem 12.21QE

Interpretation Introduction

Interpretation:

The number of moles of hydrogen peroxide present in $\text{25g}$ of $\text{3}\text{.0\%}$ solution has to be calculated.

Concept Introduction:

Mass percentage:  The mass percentage gives the number of grams of solute present in 100g of solution.  The formula of mass percentage is,

  $\text{Mass}\text{percentage=}\frac{\text{Grams}\text{of}\text{solute}}{\text{Grams}\text{of}\text{solution}}\text{×100\%}$