1. The problem statement, all variables and given/known data What is the volume of one mol of iron where iron is 55.8 g/mol and the density of iron is 7.86 x 10^3 kg/m^3 ? 2. Relevant equations p = m/v 3. The attempt at a solution I can get the numerical answer (checked back of book), but I'm not sure how my units worked out? v = m/p = (55.8 g/mol) / (7.86 x 10^3 kg/m^3) I just knock off the 10^3 and divie 55.8 by 7.86 and I get the answer of 7.10 and my units would be cm, but why? How did this work out? Thanks.