The pyknometric density of sodium chloride crystal is 2.165 x 10³ kg m⁻³, while its X-rays density is 2.178 x 10³ kg m⁻³. The fraction of unoccupied sites in sodium chloride crystal is

Options

(a) 5.96
(b) 5.96 x 10⁻²
(c) 5.96 x 10⁻¹
(d) 5.96 x 10⁻³

Correct Answer:

5.96 x 10⁻³

Explanation:

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