Methadone at a glance
| Property | Value |
|---|
| Molar mass | 309.453 g/mol |
|---|
| Molecular weight | 309.453 u |
|---|
| Chemical formula | C21H27NO |
|---|
| Monoisotopic mass | 309.209264 u |
|---|
| CAS number | 76-99-3 |
|---|
| PubChem CID | 4095 |
|---|
How to calculate the molar mass of methadone
21 × 12.011 + 27 × 1.008 + 1 × 14.007 + 1 × 15.999 = 309.453 g/mol
- Count the atoms in C21H27NO: C 21, H 27, N 1, O 1.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 309.453 g/mol.
Elemental composition of methadone
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| C Carbon | 21 | 12.011 | 252.231 | 81.509% |
|---|
| H Hydrogen | 27 | 1.008 | 27.216 | 8.7949% |
|---|
| N Nitrogen | 1 | 14.007 | 14.007 | 4.5264% |
|---|
| O Oxygen | 1 | 15.999 | 15.999 | 5.1701% |
|---|
Grams and moles of methadone
| Amount | Equals |
|---|
| 1 g | 0.0032315 mol |
|---|
| 10 g | 0.032315 mol |
|---|
| 100 g | 0.32315 mol |
|---|
| 0.1 mol | 30.945 g |
|---|
| 1 mol | 309.45 g |
|---|
| 1 g, in particles | 1.9461 × 10^21 |
|---|
Calculate other compounds