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# The density of solid argon is 1.65gm per ml at – 233$^{\large\circ}$C. If the Ar-atom is assumed to be a sphere of radius $1.54 \times 10.8$cm, what percentage of solid argon has apparently empty space [Ar = 40]

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## 1 Answer

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48.612%
Hence (A) is the correct answer.
answered Jun 4, 2014