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A molecule A(2)B(MW = 166.4) occupies tr...

A molecule `A_(2)B(MW = 166.4)` occupies triclinic lattice with `a = 5Å, b = 8Å, C = 4Å`. If the density of `A_(2)B` is `5.2gm//cm^(3)` the number of molecules present in one unit cell is? 

A

2

B

3

C

4

D

5

Text Solution

Verified by Experts

The correct Answer is:
B
`d=(Zm)/(a^(3))N,Z=(5.2xx5xx8xx4xx10^(-24)xx6xx10^(23))/(166.4)=3`
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