Molar mass

Molar Mass of Potassium Permanganate

The molar mass of potassium permanganate (KMnO4) is 158.032 g/mol.

Potassium Permanganate at a glance

PropertyValue
Molar mass158.032 g/mol
Molecular weight158.032 u
Chemical formulaKMnO4
CAS number7722-64-7
PubChem CID516875

How to calculate the molar mass of potassium permanganate

1 × 39.098 + 1 × 54.93804 + 4 × 15.999 = 158.032 g/mol

  1. Count the atoms in KMnO4: K 1, Mn 1, O 4.
  2. Multiply each atom count by the atomic weight of the element.
  3. Add the results to get 158.032 g/mol.

Elemental composition of potassium permanganate

ElementAtomsAtomic weightMass (g/mol)Mass %
K Potassium139.09839.09824.741%
Mn Manganese154.9380454.9380434.764%
O Oxygen415.99963.99640.496%

Grams and moles of potassium permanganate

AmountEquals
1 g0.0063278 mol
10 g0.063278 mol
100 g0.63278 mol
0.1 mol15.803 g
1 mol158.03 g
1 g, in particles3.8107 × 10^21