Molar mass

Molar Mass of Copper(II) Oxide

The molar mass of copper(II) oxide (CuO) is 79.545 g/mol.

Copper(II) Oxide at a glance

PropertyValue
Molar mass79.545 g/mol
Molecular weight79.545 u
Chemical formulaCuO
Monoisotopic mass78.9245123 u
CAS number1317-38-0
PubChem CID164827

How to calculate the molar mass of copper(II) oxide

1 × 63.546 + 1 × 15.999 = 79.545 g/mol

  1. Count the atoms in CuO: Cu 1, O 1.
  2. Multiply each atom count by the atomic weight of the element.
  3. Add the results to get 79.545 g/mol.

Elemental composition of copper(II) oxide

ElementAtomsAtomic weightMass (g/mol)Mass %
Cu Copper163.54663.54679.887%
O Oxygen115.99915.99920.113%

Grams and moles of copper(II) oxide

AmountEquals
1 g0.012572 mol
10 g0.12572 mol
100 g1.2572 mol
0.1 mol7.9545 g
1 mol79.545 g
1 g, in particles7.5707 × 10^21