# Need this answer

To find the density molar mass of ionic solid AB should be known. You can use the formula given below to find the density:

$d=\frac{z}{{N}_{A}}\frac{M}{{a}^{3}}\phantom{\rule{0ex}{0ex}}$

z = no. of formula units per cell

for CsCl type structure z = 2

M = molar mass of ionic solid

N

_{A}= Avogadro's number

a = edge length in cm

Regards

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