Caffeine at a glance
| Property | Value |
|---|
| Molar mass | 194.194 g/mol |
|---|
| Molecular weight | 194.194 u |
|---|
| Chemical formula | C8H10N4O2 |
|---|
| Monoisotopic mass | 194.080376 u |
|---|
| CAS number | 58-08-2 |
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| PubChem CID | 2519 |
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How to calculate the molar mass of caffeine
8 × 12.011 + 10 × 1.008 + 4 × 14.007 + 2 × 15.999 = 194.194 g/mol
- Count the atoms in C8H10N4O2: C 8, H 10, N 4, O 2.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 194.194 g/mol.
Elemental composition of caffeine
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| C Carbon | 8 | 12.011 | 96.088 | 49.48% |
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| H Hydrogen | 10 | 1.008 | 10.08 | 5.1907% |
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| N Nitrogen | 4 | 14.007 | 56.028 | 28.852% |
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| O Oxygen | 2 | 15.999 | 31.998 | 16.477% |
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Grams and moles of caffeine
| Amount | Equals |
|---|
| 1 g | 0.0051495 mol |
|---|
| 10 g | 0.051495 mol |
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| 100 g | 0.51495 mol |
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| 0.1 mol | 19.419 g |
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| 1 mol | 194.19 g |
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| 1 g, in particles | 3.1011 × 10^21 |
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Calculate other compounds