1. The problem statement, all variables and given/known data What is the difference between molecular mass and molar mass? Are they related? 2. Relevant equations moles = total mass/ mass/mole 3. The attempt at a solution I can't find any explanation in my lecture notes. I think that: molecular mass = mass of one molecule molar mass = mass of one mole of a molecule I think they are related by if i took the molecular mass and multiplied it by the number of moles, I would get the molar mass. Any help explaining these concepts is appreciated!