Corundum at a glance
| Property | Value |
|---|
| Molar mass | 101.961 g/mol |
|---|
| Molecular weight | 101.961 u |
|---|
| Chemical formula | Al2O3 |
|---|
| Monoisotopic mass | 101.947821 u |
|---|
| CAS number | 1302-74-5 |
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| PubChem CID | 14769 |
|---|
How to calculate the molar mass of corundum
2 × 26.982 + 3 × 15.999 = 101.961 g/mol
- Count the atoms in Al2O3: Al 2, O 3.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 101.961 g/mol.
Elemental composition of corundum
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| Al Aluminum | 2 | 26.982 | 53.964 | 52.926% |
|---|
| O Oxygen | 3 | 15.999 | 47.997 | 47.074% |
|---|
Grams and moles of corundum
| Amount | Equals |
|---|
| 1 g | 0.0098077 mol |
|---|
| 10 g | 0.098077 mol |
|---|
| 100 g | 0.98077 mol |
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| 0.1 mol | 10.196 g |
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| 1 mol | 101.96 g |
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| 1 g, in particles | 5.9063 × 10^21 |
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Calculate other compounds