A compound forms hcp structure, what is the total number of voids in 0.5 mol of it? How many of these are tetrahedral voids?

Explanation

Ans: .0.5 mol. of hexagonal close packed structure
has 0.5 mol of octahedrál voids and doụble its no (ie, 1 mol of tetrahedràl yoids).
. therefore Total no. of voids = 3.01 xx 10^23+6.02 xx 10^23 =9.03 xx 10^13 . .
No. of tetrahedral voids in 0.5 mole oft the unit cell,
I mole .triangle 6.023 xx 10^22. voids.