Calcium oxide · CaO

Calcium oxide: formula CaO, atom count, element breakdown and calculated molar mass.

CompoundCaO

CaO

Molar mass56.077 g/mol

Atoms2

Elements2

Oxygen

1 × 15.999 · 28.53%

15.9990

Calcium

1 × 40.078 · 71.47%

40.0780

The formula CaO contains 2 atoms in total. Numbers after element symbols show how many atoms of each element are present.

Molar mass is the sum of the contributions shown above. The percentages show how much each element contributes to the total mass.