Hydrogen Cyanide at a glance
| Property | Value |
|---|
| Molar mass | 27.026 g/mol |
|---|
| Molecular weight | 27.026 u |
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| Chemical formula | HCN |
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| Monoisotopic mass | 27.010899 u |
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| CAS number | 74-90-8 |
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| PubChem CID | 768 |
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How to calculate the molar mass of hydrogen cyanide
1 × 1.008 + 1 × 12.011 + 1 × 14.007 = 27.026 g/mol
- Count the atoms in HCN: H 1, C 1, N 1.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 27.026 g/mol.
Elemental composition of hydrogen cyanide
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| H Hydrogen | 1 | 1.008 | 1.008 | 3.7297% |
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| C Carbon | 1 | 12.011 | 12.011 | 44.442% |
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| N Nitrogen | 1 | 14.007 | 14.007 | 51.828% |
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Grams and moles of hydrogen cyanide
| Amount | Equals |
|---|
| 1 g | 0.037001 mol |
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| 10 g | 0.37001 mol |
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| 100 g | 3.7001 mol |
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| 0.1 mol | 2.7026 g |
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| 1 mol | 27.026 g |
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| 1 g, in particles | 2.2283 × 10^22 |
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Calculate other compounds