Molar mass of phosphine (PH3)
The molar mass of phosphine (PH3) is 33.998 g/mol.
Step-by-step calculation
| Element | Atoms | Atomic mass | Subtotal |
|---|---|---|---|
| Phosphorus | × 1 | 30.974 | = 30.974 |
| Hydrogen | × 3 | 1.008 | = 3.024 |
| Total | 33.998 g/mol | ||
Percent composition by element
- Phosphorus 91.11%
- Hydrogen 8.89%
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Related compounds
H3PO4 Phosphoric acid
(NH4)3PO4 Ammonium phosphate
H3PO3 Phosphorous acid
NaH2PO4 Monosodium phosphate
Na2HPO4 Disodium phosphate
KH2PO4 Monopotassium phosphate
FAQ
What is the molar mass of PH3?
The molar mass of phosphine (PH3) is 33.998 g/mol.
How do you calculate the molar mass of PH3?
Multiply the atomic mass of each element by the number of its atoms in PH3, then add the results: 1 × 30.974 (P) + 3 × 1.008 (H) = 33.998 g/mol.
What percentage of PH3 is Phosphorus?
Phosphorus makes up 91.11% of the mass of phosphine (PH3).