Chemistry
Basic

Moles from Mass

Number of moles from mass and molar mass.

Formula

n=mMn = \frac{m}{M}

Variables

mMass (g)
MMolar mass (g/mol)

Example

18 g of water (M = 18 g/mol) is exactly 1 mole.

Did You Know?

The mole links the invisible atomic world to grams you can actually weigh on a scale.

molesmassstoichiometry