Formaldehyde at a glance
| Property | Value |
|---|
| Molar mass | 30.026 g/mol |
|---|
| Molecular weight | 30.026 u |
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| Chemical formula | HCHO |
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| Monoisotopic mass | 30.0105647 u |
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| CAS number | 50-00-0 |
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| PubChem CID | 712 |
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How to calculate the molar mass of formaldehyde
2 × 1.008 + 1 × 12.011 + 1 × 15.999 = 30.026 g/mol
- Count the atoms in HCHO: H 2, C 1, O 1.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 30.026 g/mol.
Elemental composition of formaldehyde
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| H Hydrogen | 2 | 1.008 | 2.016 | 6.7142% |
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| C Carbon | 1 | 12.011 | 12.011 | 40.002% |
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| O Oxygen | 1 | 15.999 | 15.999 | 53.284% |
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Grams and moles of formaldehyde
| Amount | Equals |
|---|
| 1 g | 0.033304 mol |
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| 10 g | 0.33304 mol |
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| 100 g | 3.3304 mol |
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| 0.1 mol | 3.0026 g |
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| 1 mol | 30.026 g |
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| 1 g, in particles | 2.0056 × 10^22 |
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Calculate other compounds