Magnesium Oxide at a glance
| Property | Value |
|---|
| Molar mass | 40.304 g/mol |
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| Molecular weight | 40.304 u |
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| Chemical formula | MgO |
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| Monoisotopic mass | 39.9799563 u |
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| CAS number | 1309-48-4 |
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| PubChem CID | 14792 |
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How to calculate the molar mass of magnesium oxide
1 × 24.305 + 1 × 15.999 = 40.304 g/mol
- Count the atoms in MgO: Mg 1, O 1.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 40.304 g/mol.
Elemental composition of magnesium oxide
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| Mg Magnesium | 1 | 24.305 | 24.305 | 60.304% |
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| O Oxygen | 1 | 15.999 | 15.999 | 39.696% |
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Grams and moles of magnesium oxide
| Amount | Equals |
|---|
| 1 g | 0.024811 mol |
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| 10 g | 0.24811 mol |
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| 100 g | 2.4811 mol |
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| 0.1 mol | 4.0304 g |
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| 1 mol | 40.304 g |
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| 1 g, in particles | 1.4942 × 10^22 |
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