# What is the difference between atomic mass and molar mass?

Dec 4, 2015

See explanation.

#### Explanation:

Atomic mass is the mass of an atom and is given in a.m.u. (atomic mass unit).

However, a molar mass is the mass of one mole atoms or molecules and is given in grams.

one mole is equal to Avogadro's number (${N}_{A} = 6.022 \times {10}^{23}$) atoms or molecules.

For example:
Sodium atom has a mass of 23 a.m.u. however, the molar mass of sodium is 23g/mol.