Molar Mass of PCl3 (Phosphorus Trichloride)
Molar Mass Calculator
What is the molar mass of PCl3?
Answer
M(PCl3) ≈
137.32 g/mol
Atomic weights: IUPAC standard values (CIAAW, 2024); the sum is rounded to the decimal places of the least precise one — Cl: 35.45.
| Element | Atoms, n | Atomic weight, A | n × A, g/mol Mass fraction, w | |
|---|---|---|---|---|
| Pphosphorus | 1 | 30.974 | 30.974 w ≈ 22.56% | ≈ 22.56% |
| Clchlorine | 3 | 35.45 | 106.35 w ≈ 77.44% | ≈ 77.44% |
| Σ = 137.324 ≈ 137.32 g/mol w = 100% | 100% | |||
Atomic weights: CIAAW, Abridged Standard Atomic Weights (2024)
Cl 77.44%
P 22.56%
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Molar masses of substances nearby
| Formula | M, g/mol |
|---|---|
| CaSO₄ (calcium sulfate) | 136.13 |
| ZnCl₂ (zinc chloride) | 136.28 |
| C₆H₇N₃O (isoniazid) | 137.142 |
| PCl₃ (phosphorus trichloride) | 137.32 |
| Ba (barium) | 137.33 |
| C₇H₆O₃ (salicylic acid) | 138.122 |
| K₂CO₃ (potassium carbonate) | 138.204 |