EBK INTRODUCTION TO HEALTH PHYSICS, FIF
EBK INTRODUCTION TO HEALTH PHYSICS, FIF
5th Edition
ISBN: 9780071835268
Author: Johnson
Publisher: VST
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Chapter 5, Problem 5.1P
To determine

The number of Hg atoms/cm3.

Expert Solution & Answer
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Explanation of Solution

Given:

Density, ρ=13.6g/cm3

Atomic mass, m=200.6g/mol

Calculation:

The mole density of Hg is,

  V=ρmV=13.6g/cm3200.6g/molV=0.067mol/cm3

According to Avogadro’s principal, we get,

  1mol=6.023×1023atoms/mol0.068 mol=0.068mol/cm3×6.023×1023atoms/mol0.068 mol=4.095×1022atom/cm3

Conclusion:

Number of Hg atoms are, 4.095×1022atom/cm3

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