Chromium(III) Oxide at a glance
| Property | Value |
|---|
| Molar mass | 151.989 g/mol |
|---|
| Molecular weight | 151.989 u |
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| Chemical formula | Cr2O3 |
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| CAS number | 1308-38-9 |
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| PubChem CID | 517277 |
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How to calculate the molar mass of chromium(III) oxide
2 × 51.996 + 3 × 15.999 = 151.989 g/mol
- Count the atoms in Cr2O3: Cr 2, O 3.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 151.989 g/mol.
Elemental composition of chromium(III) oxide
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| Cr Chromium | 2 | 51.996 | 103.992 | 68.421% |
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| O Oxygen | 3 | 15.999 | 47.997 | 31.579% |
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Grams and moles of chromium(III) oxide
| Amount | Equals |
|---|
| 1 g | 0.0065794 mol |
|---|
| 10 g | 0.065794 mol |
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| 100 g | 0.65794 mol |
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| 0.1 mol | 15.199 g |
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| 1 mol | 151.99 g |
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| 1 g, in particles | 3.9622 × 10^21 |
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