Molar Mass of NaOH (Sodium Hydroxide)
Molar Mass Calculator
What is the molar mass of NaOH?
Answer
M(NaOH) =
39.997 g/mol
Atomic weights: IUPAC standard values (CIAAW, 2024).
| Element | Atoms, n | Atomic weight, A | n × A, g/mol Mass fraction, w | |
|---|---|---|---|---|
| Nasodium | 1 | 22.990 | 22.990 w ≈ 57.48% | ≈ 57.48% |
| Ooxygen | 1 | 15.999 | 15.999 w ≈ 40.00% | ≈ 40.00% |
| Hhydrogen | 1 | 1.0080 | 1.0080 w ≈ 2.52% | ≈ 2.52% |
| Σ = 39.997 g/mol w = 100% | 100% | |||
Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)
Na 57.48%O 40.00%
H 2.52%
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Molar masses of substances nearby
| Formula | M, g/mol |
|---|---|
| F₂ (fluorine) | 37.996 |
| K (potassium) | 39.098 |
| Ar (argon) | 39.95 |
| NaOH (sodium hydroxide) | 39.997 |
| Ca (calcium) | 40.078 |
| SiC (silicon carbide) | 40.096 |
| MgO (magnesium oxide) | 40.304 |