# What is the difference between mole and molar mass?

A mole is $6.02 \cdot {10}^{23}$ (avogadro's number) molecules of a substance. The molar mass is the amount of mass that 1 mole of that substance possesses.
If you have $6.02 \cdot {10}^{23}$ feathers and $6.02 \cdot {10}^{23}$ bricks, you have 1 mole of each, but the bricks have a lot more mass.