Molar Mass of CuO (Copper(II) Oxide)

Molar Mass Calculator
Chemical formula Write symbols with a capital letter: CoCl2 is cobalt chloride, COCl2 is phosgene. A hydrate takes a dot: CuSO4·5H2O or CuSO4.5H2O

What is the molar mass of CuO?

Answer

M(CuO) =
79.545 g/mol

Atomic weights: IUPAC standard values (CIAAW, 2024).

Contribution of each element
Element Atoms, n Atomic weight, A n × A, g/mol Mass fraction, w
Cucopper163.54663.546 w ≈ 79.89%
Ooxygen115.99915.999 w ≈ 20.11%
Σ = 79.545 g/mol w = 100%

Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)

Mass fractions of the elements

O 20.11%

Related Calculations

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Recalculate with different values ↑

Molar masses of substances nearby

FormulaM, g/mol
Se (selenium)78.971
NH₄HCO₃ (ammonium hydrogen carbonate)79.055
C₅H₅N (pyridine)79.102
CuO (copper(II) oxide)79.545
TiO₂ (titanium dioxide)79.865
Br (bromine)79.904
NH₄NO₃ (ammonium nitrate)80.043

FAQ

What is the molar mass of CuO?

M(CuO) = 79.545 g/mol

How to calculate the molar mass of CuO?

Add up the atomic weights of all the atoms in the formula: 63.546 + 15.999 = 79.545 g/mol.

How many grams are in 2 moles of CuO?

m = n × M = 2 mol × 79.545 g/mol = 159.090 g.

See Also