A compound is formed hexagonal close-packed structure. What is the total number of voids in 0.5 mol of it? How many of these are tetrahedral voids?

Explanation

No. of atoms in the olose packing = 0.5 mol = ` 0.5 xx 6.022 xx 10^(23) = 3.011 xx 10^(23)`
No. of octahedral voids = No, of atoms in the packing = ` 3.011 xx 10^(23)`
No. of tetrahedral voids = ` 2xx` No, of atoms in the packing = ` 2xx 3.011 xx 10^(23) = 6.022 xx 10^(23)`
Total no. of voidsl `= 3.011 xx 10 + 6.022 xx 10^(23) = 9.033 xx 10^(23)`