Calcium hydroxide · Ca(OH)2

Calcium hydroxide: formula Ca(OH)2, atom count, element breakdown and calculated molar mass.

CompoundCa(OH)₂

Ca(OH)₂

Molar mass74.092 g/mol

Atoms5

Elements3

Hydrogen

2 × 1.008 · 2.72%

2.0160

Oxygen

2 × 15.999 · 43.19%

31.9980

Calcium

1 × 40.078 · 54.09%

40.0780

The formula Ca(OH)₂ contains 5 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.