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The density of solid Ar (Ar=40 g/mole) i...

The density of solid Ar (Ar=40 g/mole) is 1.68 g/ml at 40 K. if the argon atom is assumed to be a sphere of radius `1.50xx10^(-8)cm`, then % of solid Ar is apparently empty space?

A

`35.64`

B

`64.36`

C

`74 %`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
B
vol, solid Ar `=1 cm^(3)` vol,
atoms `=(1.68)/(40)xxN_(0)xx(4)/(3)xx(22)/(7)xx(1.5)^(3)xx10^(-24)=0.3564`
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