Sodium Thiosulfate at a glance
| Property | Value |
|---|
| Molar mass | 158.097 g/mol |
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| Molecular weight | 158.097 u |
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| Chemical formula | Na2S2O3 |
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| Monoisotopic mass | 157.908425 u |
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| CAS number | 7772-98-7 |
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| PubChem CID | 24477 |
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How to calculate the molar mass of sodium thiosulfate
2 × 22.99 + 2 × 32.06 + 3 × 15.999 = 158.097 g/mol
- Count the atoms in Na2S2O3: Na 2, S 2, O 3.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 158.097 g/mol.
Elemental composition of sodium thiosulfate
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| Na Sodium | 2 | 22.99 | 45.98 | 29.083% |
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| S Sulfur | 2 | 32.06 | 64.12 | 40.557% |
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| O Oxygen | 3 | 15.999 | 47.997 | 30.359% |
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Grams and moles of sodium thiosulfate
| Amount | Equals |
|---|
| 1 g | 0.0063252 mol |
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| 10 g | 0.063252 mol |
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| 100 g | 0.63252 mol |
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| 0.1 mol | 15.81 g |
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| 1 mol | 158.1 g |
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| 1 g, in particles | 3.8091 × 10^21 |
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Calculate other compounds