Streptomycin at a glance
| Property | Value |
|---|
| Molar mass | 581.58 g/mol |
|---|
| Molecular weight | 581.58 u |
|---|
| Chemical formula | C21H39N7O12 |
|---|
| Monoisotopic mass | 581.26567 u |
|---|
| CAS number | 57-92-1 |
|---|
| PubChem CID | 19649 |
|---|
How to calculate the molar mass of streptomycin
21 × 12.011 + 39 × 1.008 + 7 × 14.007 + 12 × 15.999 = 581.58 g/mol
- Count the atoms in C21H39N7O12: C 21, H 39, N 7, O 12.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 581.58 g/mol.
Elemental composition of streptomycin
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| C Carbon | 21 | 12.011 | 252.231 | 43.37% |
|---|
| H Hydrogen | 39 | 1.008 | 39.312 | 6.7595% |
|---|
| N Nitrogen | 7 | 14.007 | 98.049 | 16.859% |
|---|
| O Oxygen | 12 | 15.999 | 191.988 | 33.011% |
|---|
Grams and moles of streptomycin
| Amount | Equals |
|---|
| 1 g | 0.0017195 mol |
|---|
| 10 g | 0.017195 mol |
|---|
| 100 g | 0.17195 mol |
|---|
| 0.1 mol | 58.158 g |
|---|
| 1 mol | 581.58 g |
|---|
| 1 g, in particles | 1.0355 × 10^21 |
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