Question
Tue June 19, 2012 By: Aakanksha

Caesium chloride crystalises as a bcc lattice and has a density of 4.0g/cm. calculate the edge length of the unit cell.

Expert Reply
Tue June 19, 2012
density = Z x M /a3 X N0 X 10-30
4 = 2 x 168.35 / a3 x 6.023 x 1023
a3  = 2 X 168.35 /6.023 x 1023 x 4
       = 336.7 /24 x 1023
     a3 = 14 x 10-23
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