Ampicillin at a glance
| Property | Value |
|---|
| Molar mass | 349.405 g/mol |
|---|
| Molecular weight | 349.405 u |
|---|
| Chemical formula | C16H19N3O4S |
|---|
| Monoisotopic mass | 349.109627 u |
|---|
| CAS number | 69-53-4 |
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| PubChem CID | 6249 |
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How to calculate the molar mass of ampicillin
16 × 12.011 + 19 × 1.008 + 3 × 14.007 + 4 × 15.999 + 1 × 32.06 = 349.405 g/mol
- Count the atoms in C16H19N3O4S: C 16, H 19, N 3, O 4, S 1.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 349.405 g/mol.
Elemental composition of ampicillin
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| C Carbon | 16 | 12.011 | 192.176 | 55.001% |
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| H Hydrogen | 19 | 1.008 | 19.152 | 5.4813% |
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| N Nitrogen | 3 | 14.007 | 42.021 | 12.026% |
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| O Oxygen | 4 | 15.999 | 63.996 | 18.316% |
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| S Sulfur | 1 | 32.06 | 32.06 | 9.1756% |
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Grams and moles of ampicillin
| Amount | Equals |
|---|
| 1 g | 0.002862 mol |
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| 10 g | 0.02862 mol |
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| 100 g | 0.2862 mol |
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| 0.1 mol | 34.941 g |
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| 1 mol | 349.41 g |
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| 1 g, in particles | 1.7235 × 10^21 |
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