Molar Mass of KMnO4 (Potassium Permanganate)
Molar Mass Calculator
What is the molar mass of KMnO4?
Answer
M(KMnO4) =
158.032 g/mol
Atomic weights: IUPAC standard values (CIAAW, 2024).
| Element | Atoms, n | Atomic weight, A | n × A, g/mol Mass fraction, w | |
|---|---|---|---|---|
| Kpotassium | 1 | 39.098 | 39.098 w ≈ 24.74% | ≈ 24.74% |
| Mnmanganese | 1 | 54.938 | 54.938 w ≈ 34.76% | ≈ 34.76% |
| Ooxygen | 4 | 15.999 | 63.996 w ≈ 40.50% | ≈ 40.50% |
| Σ = 158.032 g/mol w = 100% | 100% | |||
Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)
O 40.50%
Mn 34.76%K 24.74%
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Molar masses of substances nearby
| Formula | M, g/mol |
|---|---|
| CaCrO₄ (calcium chromate) | 156.070 |
| C₆H₅Br (bromobenzene) | 157.010 |
| Gd (gadolinium) | 157.25 |
| KMnO₄ (potassium permanganate) | 158.032 |
| Na₂S₂O₃ (sodium thiosulfate) | 158.10 |
| (CH₃COO)₂Ca (calcium acetate) | 158.166 |
| K₂SO₃ (potassium sulfite) | 158.25 |