Question

What is the molar mass of any substance defined as?

Answer 1

The mass of one mole of the substance.

Explanation:

In chemistry, the molar mass is a physical property defined as the mass of a given substance divided by the amount of substance. The base SI unit for molar mass is kg/mol. The most practical chemical molar mass used is g/mol because kilogram quantities are not usually used in chemical experiments.

Some example calculations are here: https://www.thoughtco.com/molar-mass-example-problem-609569

The “mole” (mol) is `6.022 * 10^23`units – atoms or molecules, as discovered by Amedeo Avogadro.