Mendeleev
Chemistry › Compound
Mendeleev · Compound

Potassium nitrate · KNO3

Potassium nitrate: formula KNO3, atom count, element breakdown and calculated molar mass.

CompoundKNO3
KNO3
Molar mass101.102 g/mol
Atoms5
Elements3
N
Nitrogen
1 × 14.007 · 13.85%
14.0070
O
Oxygen
3 × 15.999 · 47.47%
47.9970
K
Potassium
1 × 39.0983 · 38.67%
39.0983

The formula KNO3 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.