Methionine at a glance
| Property | Value |
|---|
| Molar mass | 149.208 g/mol |
|---|
| Molecular weight | 149.208 u |
|---|
| Chemical formula | C5H11NO2S |
|---|
| Monoisotopic mass | 149.05105 u |
|---|
| CAS number | 63-68-3 |
|---|
| PubChem CID | 6137 |
|---|
How to calculate the molar mass of methionine
5 × 12.011 + 11 × 1.008 + 1 × 14.007 + 2 × 15.999 + 1 × 32.06 = 149.208 g/mol
- Count the atoms in C5H11NO2S: C 5, H 11, N 1, O 2, S 1.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 149.208 g/mol.
Elemental composition of methionine
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| C Carbon | 5 | 12.011 | 60.055 | 40.249% |
|---|
| H Hydrogen | 11 | 1.008 | 11.088 | 7.4312% |
|---|
| N Nitrogen | 1 | 14.007 | 14.007 | 9.3876% |
|---|
| O Oxygen | 2 | 15.999 | 31.998 | 21.445% |
|---|
| S Sulfur | 1 | 32.06 | 32.06 | 21.487% |
|---|
Grams and moles of methionine
| Amount | Equals |
|---|
| 1 g | 0.0067021 mol |
|---|
| 10 g | 0.067021 mol |
|---|
| 100 g | 0.67021 mol |
|---|
| 0.1 mol | 14.921 g |
|---|
| 1 mol | 149.21 g |
|---|
| 1 g, in particles | 4.0361 × 10^21 |
|---|
Calculate other compounds