Question

iron oxide has a cubic structure and each unit shell has 5 angstrom . if density of the oxide is 4 gm calculate the no. of Fe dopositive and o dinegative ions present in each unit shell

Answer 1

Solution:We have givenvolume of the unit cell = (5 x 10-8cm)3 = 1.25 x ... If the density of the oxide is 4 g cm–3, calculate the number of Fe 2+ and O2–ions present in each unit cell.