Molar mass

Molar Mass of Potassium Chloride

The molar mass of potassium chloride (KCl) is 74.548 g/mol.

Potassium Chloride at a glance

PropertyValue
Molar mass74.548 g/mol
Molecular weight74.548 u
Chemical formulaKCl
Monoisotopic mass73.9325592 u
CAS number7447-40-7
PubChem CID4873

How to calculate the molar mass of potassium chloride

1 × 39.098 + 1 × 35.45 = 74.548 g/mol

  1. Count the atoms in KCl: K 1, Cl 1.
  2. Multiply each atom count by the atomic weight of the element.
  3. Add the results to get 74.548 g/mol.

Elemental composition of potassium chloride

ElementAtomsAtomic weightMass (g/mol)Mass %
K Potassium139.09839.09852.447%
Cl Chlorine135.4535.4547.553%

Grams and moles of potassium chloride

AmountEquals
1 g0.013414 mol
10 g0.13414 mol
100 g1.3414 mol
0.1 mol7.4548 g
1 mol74.548 g
1 g, in particles8.0782 × 10^21