A) 2
B) 3
C) 4
D) 5
Correct Answer: B
Solution :
[b] Volume of unit cell \[=a\times b\times c\] \[=5\times {{10}^{-8}}\times 8\times {{10}^{-8}}\times 4\times {{10}^{-8}}\] \[=1.6\times {{10}^{-22}}c{{m}^{3}}\] Mass of unit cell \[=1.6\times {{10}^{-22}}\times 5.2\] \[=8.32\times {{10}^{-22}}g\] Number of molecules in one unit cell \[=\frac{8.32\times {{10}^{-22}}}{166.4gmo{{l}^{-1}}}=3\]You need to login to perform this action.
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