Question

Define formula mass and how does it differs from molecular mass

Answer 1

The formula mass of a molecule is the sum of the atomic weights of the atoms in the empirical formula of the compound. Also Known As: formula weight. Formula Mass Units: Formulaweight is given in atomic mass units (amu)

The key difference between formula mass and molar mass is that, theformula mass of a molecule or a compound is the sum of the atomicweights of the atoms in its empiricalformula while molar mass is the massin grams of 1 mol of substance.