Solid StateHard
Question
If the unit cell length of sodium chloride crystal is 600 pm, then its density will be
Options
A.2.165 g/cm3
B.3.247 g/cm3
C.1.79 g/cm3
D.1.082 g/cm3
Solution
$d = \frac{Z.M}{N_{A}.V} = \frac{4 \times 58.5}{\left( 6 \times 10^{23} \right) \times \left( 600 \times 10^{- 10} \right)^{3}} = 1.8\text{gm/c}\text{m}^{3}$
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