Molar mass of calcium oxide (CaO)

The molar mass of calcium oxide (CaO) is 56.077 g/mol.

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Step-by-step calculation

ElementAtomsAtomic massSubtotal
Calcium × 1 40.078 = 40.078
Oxygen × 1 15.999 = 15.999
Total56.077 g/mol

Percent composition by element

  • Calcium 71.47%
  • Oxygen 28.53%

Try another formula

H2O NaCl CO2 C6H12O6 H2SO4 Ca(OH)2 CuSO4·5H2O C8H10N4O2

Could not read that formula

Related compounds

CaCO3 Calcium carbonate Ca(OH)2 Calcium hydroxide CaSO4 Calcium sulfate Ca3(PO4)2 Calcium phosphate Ca(NO3)2 Calcium nitrate CaSO4·2H2O Calcium sulfate dihydrate

FAQ

What is the molar mass of CaO?

The molar mass of calcium oxide (CaO) is 56.077 g/mol.

How do you calculate the molar mass of CaO?

Multiply the atomic mass of each element by the number of its atoms in CaO, then add the results: 1 × 40.078 (Ca) + 1 × 15.999 (O) = 56.077 g/mol.

What percentage of CaO is Calcium?

Calcium makes up 71.47% of the mass of calcium oxide (CaO).