Sodium Hydroxide at a glance
| Property | Value |
|---|
| Molar mass | 39.997 g/mol |
|---|
| Molecular weight | 39.997 u |
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| Chemical formula | NaOH |
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| Monoisotopic mass | 39.9925089 u |
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| CAS number | 1310-73-2 |
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| PubChem CID | 14798 |
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How to calculate the molar mass of sodium hydroxide
1 × 22.99 + 1 × 15.999 + 1 × 1.008 = 39.997 g/mol
- Count the atoms in NaOH: Na 1, O 1, H 1.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 39.997 g/mol.
Elemental composition of sodium hydroxide
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| Na Sodium | 1 | 22.99 | 22.99 | 57.479% |
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| O Oxygen | 1 | 15.999 | 15.999 | 40.001% |
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| H Hydrogen | 1 | 1.008 | 1.008 | 2.5202% |
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Grams and moles of sodium hydroxide
| Amount | Equals |
|---|
| 1 g | 0.025002 mol |
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| 10 g | 0.25002 mol |
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| 100 g | 2.5002 mol |
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| 0.1 mol | 3.9997 g |
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| 1 mol | 39.997 g |
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| 1 g, in particles | 1.5056 × 10^22 |
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Calculate other compounds