Sulfurous Acid at a glance
| Property | Value |
|---|
| Molar mass | 82.073 g/mol |
|---|
| Molecular weight | 82.073 u |
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| Chemical formula | H2SO3 |
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| Monoisotopic mass | 81.9724651 u |
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| CAS number | 7782-99-2 |
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| PubChem CID | 1100 |
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How to calculate the molar mass of sulfurous acid
2 × 1.008 + 1 × 32.06 + 3 × 15.999 = 82.073 g/mol
- Count the atoms in H2SO3: H 2, S 1, O 3.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 82.073 g/mol.
Elemental composition of sulfurous acid
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| H Hydrogen | 2 | 1.008 | 2.016 | 2.4563% |
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| S Sulfur | 1 | 32.06 | 32.06 | 39.063% |
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| O Oxygen | 3 | 15.999 | 47.997 | 58.481% |
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Grams and moles of sulfurous acid
| Amount | Equals |
|---|
| 1 g | 0.012184 mol |
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| 10 g | 0.12184 mol |
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| 100 g | 1.2184 mol |
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| 0.1 mol | 8.2073 g |
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| 1 mol | 82.073 g |
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| 1 g, in particles | 7.3375 × 10^21 |
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Calculate other compounds