Chemistry - Solid State Question with Solution | TestHub

For bcc unit cell, $\mathrm{n}=2$. $$\begin{array}{rl}& \text{ Density of bcc unit cell }=\rho =\frac{\mathrm{Mn}}{{\mathrm{a}}^3{\mathrm{N}}_{\mathrm{A}}}\\ & \mathrm{M}=\frac{\rho \times {\mathrm{a}}^3\times {\mathrm{N}}_{\mathrm{A}}}{\mathrm{n}}\\ & \mathrm{M}=\frac{10\mathrm{g}{\mathrm{cm}}^{-3}\times {\left(3\times 10^{-8}\mathrm{cm}\right)}^3\times 6.022\times 10^{23}\mathrm{atom}{\mathrm{mol}}^{-1}}{2\text{ atoms }}\\ & \mathrm{M}=81.3\mathrm{g}{\mathrm{mol}}^{-1}\end{array}$$