Molar Mass of PH3 (Phosphine)
Molar Mass Calculator
What is the molar mass of PH3?
Answer
M(PH3) =
33.998 g/mol
Atomic weights: IUPAC standard values (CIAAW, 2024).
| Element | Atoms, n | Atomic weight, A | n × A, g/mol Mass fraction, w | |
|---|---|---|---|---|
| Pphosphorus | 1 | 30.974 | 30.974 w ≈ 91.11% | ≈ 91.11% |
| Hhydrogen | 3 | 1.0080 | 3.0240 w ≈ 8.89% | ≈ 8.89% |
| Σ = 33.998 g/mol w = 100% | 100% | |||
Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)
P 91.11%
H 8.89%
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Molar masses of substances nearby
| Formula | M, g/mol |
|---|---|
| CH₃OH (methanol) | 32.042 |
| N₂H₄ (hydrazine) | 32.046 |
| S (sulfur) | 32.06 |
| PH₃ (phosphine) | 33.998 |
| H₂O₂ (hydrogen peroxide) | 34.014 |
| CH₃F (fluoromethane) | 34.033 |
| H₂S (hydrogen sulfide) | 34.08 |