Question

9. How does molar mass differ from formula unit mass?​

Answer 1

Answer:

Fomula mass and molecular mass are two values that express the size of a molecule. The formula mass of a molecule is the sum of the atomic weights of the atoms in its empirical formula.The molecular mass of a molecule is its average mass as calculated by adding together the atomic weights of the atoms in the molecular formula.

Answer 2

Answer:

The key difference between molecular mass and formula mass is that the formula mass of a molecule of a compound is the sum of atomic weights of the atoms in its emperical formula while molar mass is the mass of 1 gram mole of substance.