   Chapter 1, Problem 50RGQ

Chapter
Section
Textbook Problem

About two centuries ago, Benjamin Franklin showed that 1 teaspoon of oil would cover about 0.5 acre of still water. If you know that 1.0 × 104 m2 = 2.47 acres and that there is approximately 5 cm3 in a teaspoon, what is the thickness of the 0.5-acre layer of oil? How might this thickness be related to the sizes of molecules?

Interpretation Introduction

Interpretation: The thickness of the 0.5 acre layer of oil and the relationship between the thicknesses to the size of the molecules has to be given.

Explanation

The thickness is calculated as,

Given:Volume = 5 cm3=0.000005 m3Known:10000 square meters = 2.47 acres, 0.5 acres = 2024.29 square meters (Area) Volume = Area × height0.000005 m3 = 2024.29m2× heightHeight = 0

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