Molar Mass

Molar mass is the mass of one mole of a substance in grams.

*The unit of molar mass is grams per mole (g mol-1).

Molar mass of a substance is numerically equal to its relative atomic mass/ relative molecular mass/ relative formula mass.


Molar mass of atomic substance:

molar mass


Molar mass of molecular substance:

molar mass 2


Molar mass of ionic substance:

molar mass 3


How to calculate the molar mass of different substances.