Question

Difference between molecular mass and formula mass with examples

Answer 1

Answer:

The formula mass (formula weight) of a molecule is the sum of the atomic weights of the atoms in its empirical formula. The molecular mass (molecular weight) of a molecule is its average mass as calculated by adding together the atomic weights of the atoms in the molecular formula.

hope it helps

Answer 2

Answer:

molecular mass only for molecular compounds it means one molecule is how many times heavier than 1 by 12 mass of c 12 isotope like water but formula mass only for ionic compounds like sodium chloride