Chapter 1, Problem 1.77P

(a)

Interpretation Introduction

Interpretation:

The mass range of copper in $185\text{ g}$ of yellow zinc is to be calculated.

Concept introduction:

Mass percent is defined as the mass of a component divided by the total mass of the mixture, multiplied by 100.

The formula to calculate the mass percent is as follows:

  $\text{Mass}\text{percent}=\left(\frac{\text{mass}\text{of}\text{solute}}{\text{mass}\text{of}\text{solution}}\right)100$

(b)

Interpretation Introduction

Interpretation:

The mass range of zinc in a sample of yellow zinc that contains $46.5\text{ g}$ of copper is to be calculated.

Concept introduction:

Mass percent is defined as the mass of a component divided by the total mass of the mixture, multiplied by 100.

The formula to calculate the mass percent is as follows:

  $\text{Mass}\text{percent}=\left(\frac{\text{mass}\text{of}\text{solute}}{\text{mass}\text{of}\text{solution}}\right)100$