Aspirin at a glance
| Property | Value |
|---|
| Molar mass | 180.159 g/mol |
|---|
| Molecular weight | 180.159 u |
|---|
| Chemical formula | C9H8O4 |
|---|
| Monoisotopic mass | 180.042259 u |
|---|
| CAS number | 50-78-2 |
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| PubChem CID | 2244 |
|---|
How to calculate the molar mass of aspirin
9 × 12.011 + 8 × 1.008 + 4 × 15.999 = 180.159 g/mol
- Count the atoms in C9H8O4: C 9, H 8, O 4.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 180.159 g/mol.
Elemental composition of aspirin
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| C Carbon | 9 | 12.011 | 108.099 | 60.002% |
|---|
| H Hydrogen | 8 | 1.008 | 8.064 | 4.476% |
|---|
| O Oxygen | 4 | 15.999 | 63.996 | 35.522% |
|---|
Grams and moles of aspirin
| Amount | Equals |
|---|
| 1 g | 0.0055507 mol |
|---|
| 10 g | 0.055507 mol |
|---|
| 100 g | 0.55507 mol |
|---|
| 0.1 mol | 18.016 g |
|---|
| 1 mol | 180.16 g |
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| 1 g, in particles | 3.3427 × 10^21 |
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Calculate other compounds