Chapter 1.10, Problem 9PE

Interpretation Introduction

Interpretation:

The mass of air in a ping-pong ball has to be calculated.

Concept Introduction:

Density: Density (d) is given by the ratio of mass to volume.

$\begin{array}{c}\text{d}\text{=}\frac{\text{m}}{\text{V}}\\ \text{d}\text{-}\text{density of the substance}\\ \text{ m}\text{-}\text{mass of the substance}\\ \text{V-}\text{volume}\text{occupied by the substance}\end{array}$