
To find:
a) Sketch the unit cell of
b) Calculate the density of
c) Calculate the percent empty space in a unit cell of

Answer to Problem 18.93QA
Solution:
a)
b)
c)
Explanation of Solution
1) Concept:
a) Unit cell of
b)
c) The packing efficiency is calculated using volumes of one
2) Formula:
i)
ii)
iii)
iv)
3) Given:
i)
ii)
4) Calculations:
b)
Volume of a unit cell:
Molar mass of
Mass of a unit cell of
Volume of
Volume of
So total volume of a
So,
This is the space occupied by
Conclusion:
From the diagram of unit cell of
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Chapter 18 Solutions
Chemistry: An Atoms-Focused Approach
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