1. The problem statement, all variables and given/known data An element has bcc packing with a body-centered cubic unit cell. Its density is 862 kg/m^3 and the unit cell volume is 1.51 x 10-28 m^3. Calculate the molar mass (g/mol) of the element to three significant figures. 2. Relevant equations Known: D= 862 kg/m^3, V=1.51 x 10-28 m^3 , MM=?? 3. The attempt at a solution Ok the correct answer is 39.2, but I don't know how to arrive to that answer. (862kg/m^3)(1.51e-28m^3)(1000g/1kg)(6.022e23atoms/1mol)(1/2 atoms) (0.68) but instead I get 26.6504. The 0.68 is the density packing.