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A unit of cell of sodium chloride has fo...

A unit of cell of sodium chloride has four formula units. The edge length of the unit cell is `0.564 nm`. What is the density of sodium chloride?

A

`"3.89 g cm"^(-3)`

B

`"2.16 g cm"^(-3)`

C

`"3 g cm"^(-3)`

D

`"1.82 g cm"^(-3)`

Text Solution

Verified by Experts

The correct Answer is:
B
`d=(ZxxM)/(a^3xxN_A)=(4xx58.5)/((5.64xx10^(-8))^3xx6.023xx10^23)`
`="2.16 g cm"^(-3)`
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