Question
CsBr crystallises in a body centred cubic lattice. Theunit cell length is 436.6 pm. Given that the atomicmass of Cs-133 and that of Br-80 amu andAvogadro number being 6.023 x 1023 mol-1 thedensity of CsBr is:(1) 42.5 g cm-3(3) 8.25 g cm 3(2) 0.425 g cm-3(4) 4.25 g cm-3