Fentanyl at a glance
| Property | Value |
|---|
| Molar mass | 336.479 g/mol |
|---|
| Molecular weight | 336.479 u |
|---|
| Chemical formula | C22H28N2O |
|---|
| Monoisotopic mass | 336.220164 u |
|---|
| CAS number | 437-38-7 |
|---|
| PubChem CID | 3345 |
|---|
How to calculate the molar mass of fentanyl
22 × 12.011 + 28 × 1.008 + 2 × 14.007 + 1 × 15.999 = 336.479 g/mol
- Count the atoms in C22H28N2O: C 22, H 28, N 2, O 1.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 336.479 g/mol.
Elemental composition of fentanyl
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| C Carbon | 22 | 12.011 | 264.242 | 78.531% |
|---|
| H Hydrogen | 28 | 1.008 | 28.224 | 8.388% |
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| N Nitrogen | 2 | 14.007 | 28.014 | 8.3256% |
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| O Oxygen | 1 | 15.999 | 15.999 | 4.7548% |
|---|
Grams and moles of fentanyl
| Amount | Equals |
|---|
| 1 g | 0.002972 mol |
|---|
| 10 g | 0.02972 mol |
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| 100 g | 0.2972 mol |
|---|
| 0.1 mol | 33.648 g |
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| 1 mol | 336.48 g |
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| 1 g, in particles | 1.7898 × 10^21 |
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