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The density of KBr is 2.73g//cm. The len...

The density of `KBr` is 2.73g//cm`. The length of the unit cell is `654p m` . Find the number of atoms per unit cell in the cubic structure.

Text Solution

Verified by Experts

The correct Answer is:
4
`:'z=(rhoxxa^(3)xxN_(A))/(at. wt. ) ( :'at. wt. of KBr=119)`
`:. z=(2.73xx(654xx10^(-10))^(3)xx6.023xx10^(23))/(119)`
`z~~4`
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