Identify the use of Baeyer's reagent by the following.

What is the total contribution of all corner particles in bcc unit cell?

When silver crystallizes, it forms face centered cubic cells, if the volume of unit cells $6.84 \times 10^{-23}\ \text{cm}^3$. Calculate the density of silver. (Molar mass of silver is 108 g/mol, $N_A = 6.022 \times 10^{23}$)

What is the coordination number of Ag in a crystal lattice?