A solid having density of 9 × 103 kg m–3 forms face centred cubic crystals of edge length 200√2 pm. What is the molar mass of the solid?
[Avogadro constant ≅ 6 × 1023 mol-1, π ≅ 3]
(1) 0.0216 kg mol-1
(2) 0.0432 kg mol-1
(3) 0.0305 kg mol-1
(4) 0.4320 kg mol-1
