   Chapter 13, Problem 20ALQ ### Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

#### Solutions

Chapter
Section ### Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
5 views

Interpretation Introduction

Interpretation:

To determine the mass of air at normal conditions that takes up the volume of your head.

Concept Introduction:

The matter that is measured in an object with the unit grams or kilograms is defined as mass.

Explanation

Let us assume the average circumference of the head be 22 inches.

The density of the air is given as 1.1839 kg/m3

=1.1839/1000

=1.1839×103 kg/L

Average circumference of the head =22 inch

=22×2.54(Since, 1 inch=2.54 cm)

=55.88 cm

Circumference of the sphere =πd

Thus, diameter can be calculated as follows:

d=55.88 cmπ=55.88 cm3.14=17.8 cm

r=d2=17.8 cm2=8

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