Molar mass

Molar Mass of Aluminum Oxide

The molar mass of aluminum oxide (Al2O3) is 101.961 g/mol.

Aluminum Oxide at a glance

PropertyValue
Molar mass101.961 g/mol
Molecular weight101.961 u
Chemical formulaAl2O3
Monoisotopic mass101.947821 u
CAS number1344-28-1
PubChem CID9989226

How to calculate the molar mass of aluminum oxide

2 × 26.982 + 3 × 15.999 = 101.961 g/mol

  1. Count the atoms in Al2O3: Al 2, O 3.
  2. Multiply each atom count by the atomic weight of the element.
  3. Add the results to get 101.961 g/mol.

Elemental composition of aluminum oxide

ElementAtomsAtomic weightMass (g/mol)Mass %
Al Aluminum226.98253.96452.926%
O Oxygen315.99947.99747.074%

Grams and moles of aluminum oxide

AmountEquals
1 g0.0098077 mol
10 g0.098077 mol
100 g0.98077 mol
0.1 mol10.196 g
1 mol101.96 g
1 g, in particles5.9063 × 10^21