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  • The compound CuCl has fcc structure like ZnS. Its density is  . What is the volume of unit cell ? Given : Atomic mas

The compound CuCl has fcc structure like ZnS. Its density is 3.04\, g\, cm^{-3} . What is the volume of unit cell ?

Given : Atomic mass of Cu = 63·5 u; Cl = 35·5 u

N_A=6.02\times 10^{23}\, mol^{-1}

 

 

 

 
 
 
 
 

Answers (1)

Atomic mass of Cu = 63.5 u and Cl = 35.5 u.

N_A=6.02\times 10^{23}mol^{-1}

density =3.04\, gcm^{-3}

\begin{aligned} &d=\frac{n \times m}{a^{3} \times N_{A}}\\ &3.04=\frac{4 \times 99}{V \times 6.02 \times 10^{23}}\\ &V=\frac{4 \times 99}{3.04 \times 6.02 \times 10^{23}}\\ &=21.638 \times 10^{-23} \mathrm{cm}^{3} \end{aligned}

Posted by

Sumit Saini

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