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CGP EDU Academic Team
Published on: August 13, 2026
The density of solid argon (Ar = 40 g/mol) is 1.68 g/mL at 40 K. If the argon atom is assumed to be a sphere of radius = 1.50 × 10 –8 cm, what % of solid Ar is apparently empty space ?
Text Solution
Verified by ExpertsThe correct answer is:
B
Vol. of all atoms in 1.68 gm
argon = 
= 0.3564
vol. of solid argon = 1 cm 3 % empty space = (1 – 0.3564) × 100 = 64.36
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