   Chapter 1, Problem 48RGQ

Chapter
Section
Textbook Problem

The aluminum in a package containing 75 ft2 of kitchen foil weighs approximately 12 ounces. Aluminum has a density of 2.70 g/cm2What is the approximate thickness of the aluminum foil in millimeters? (1 ounce = 28.4 g)

Interpretation Introduction

Interpretation: The thickness of aluminum foil in millimeters has to be given.

Concept Introduction:

Thickness of material can be given as,

Thickness of a aluminum foil = Mass of foilarea × density of aluminum foil

Explanation

The thickness is calculated as,

Convert ounces to grams,

1ounce = 28.35grams12ounces = 340.194grams

Convert ft2tocm2

1ft2 = 929.03cm275ft2 = 69677.3cm2

The thickness is now calculated as,

Thickness of a aluminum foil  Mass of foilarea × density of aluminum foilThickness of a aluminum foil  340

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