Q32: 32. 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 1.50 x 10-8 cm, then % of solid Ar is apparently empty space ? (A) 35.64 (B) 64.36 (C) 74 (D) None these. Share with your friends Share 2 Mohan Kumar answered this Dear Student, Regards 5 View Full Answer