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Calculate the atomic mass of an element which crystallizes into a cubic structure with one on each corner of the cube. The volume of the unit cell is 24×10^-29centimetre cube and density is 7.2 gram per centimetre cube

Calculate the atomic mass of an element which crystallizes into a cubic structure with one on each corner of the cube. The volume of the unit cell is 24×10^-29centimetre cube and density is 7.2 gram per centimetre cube

Grade:12

1 Answers

Chemistry Expert - askIITians
askIITians Faculty 36 Points
6 years ago
Density of crystal lattice is given by


where, n: no of atom in unit cell
M: Molar mass of the compound
a : distance between two nearby atom
Na: Avogadro No.

Given: Z = 7.2 gram/cm3
a3 = 24 x 10-29 cm3
n= 1
to find = Molar mass

therefore, M= 1.040 x 10-3 g

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