Question

Differentiate between molecular formula mass and empirical formula mass.

Answer 1

Molecular Formula Mass	Empirical Formula Mass
It is the sum of the atomic masses of all atoms present in one molecule, as represented by its molecular formula.	It is the sum of the atomic masses of the atoms present in the empirical formula of a compound.
It represents the mass based on the actual molecular formula.	It represents the mass based on the simplest whole-number ratio of atoms.
Example: Molecular formula of glucose = C6H12O6; molecular formula mass = 180 u.	Example: Empirical formula of glucose = CH2O; empirical formula mass = 30 u.