Sulfur Trioxide at a glance
| Property | Value |
|---|
| Molar mass | 80.057 g/mol |
|---|
| Molecular weight | 80.057 u |
|---|
| Chemical formula | SO3 |
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| Monoisotopic mass | 79.956815 u |
|---|
| CAS number | 7446-11-9 |
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| PubChem CID | 24682 |
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How to calculate the molar mass of sulfur trioxide
1 × 32.06 + 3 × 15.999 = 80.057 g/mol
- Count the atoms in SO3: S 1, O 3.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 80.057 g/mol.
Elemental composition of sulfur trioxide
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| S Sulfur | 1 | 32.06 | 32.06 | 40.046% |
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| O Oxygen | 3 | 15.999 | 47.997 | 59.954% |
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Grams and moles of sulfur trioxide
| Amount | Equals |
|---|
| 1 g | 0.012491 mol |
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| 10 g | 0.12491 mol |
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| 100 g | 1.2491 mol |
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| 0.1 mol | 8.0057 g |
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| 1 mol | 80.057 g |
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| 1 g, in particles | 7.5223 × 10^21 |
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Calculate other compounds