Phosphorus Pentoxide at a glance
| Property | Value |
|---|
| Molar mass | 141.943 g/mol |
|---|
| Molecular weight | 141.943 u |
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| Chemical formula | P2O5 |
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| Monoisotopic mass | 141.922097 u |
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| CAS number | 1314-56-3 |
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| PubChem CID | 6326975 |
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How to calculate the molar mass of phosphorus pentoxide
2 × 30.974 + 5 × 15.999 = 141.943 g/mol
- Count the atoms in P2O5: P 2, O 5.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 141.943 g/mol.
Elemental composition of phosphorus pentoxide
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| P Phosphorus | 2 | 30.974 | 61.948 | 43.643% |
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| O Oxygen | 5 | 15.999 | 79.995 | 56.357% |
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Grams and moles of phosphorus pentoxide
| Amount | Equals |
|---|
| 1 g | 0.0070451 mol |
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| 10 g | 0.070451 mol |
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| 100 g | 0.70451 mol |
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| 0.1 mol | 14.194 g |
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| 1 mol | 141.94 g |
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| 1 g, in particles | 4.2426 × 10^21 |
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Calculate other compounds