1. | Mass of Crucible, cover, and magnesium | 21.85 grams | Balance |
2. | Mass of crucible and cover | 21.54 grams | Balance |
3. | Mass of magnesium used | 0.33 grams | 21.85-21.54 |
4. | Mass of crucible, cover and product | 21.97 grams | Balance |
5. | Mass of crucible plus cover | 21.54 grams | Balance |
6. | Mass of compound formed | 0.43 grams | 21.97-21.54 |
7. | Mass of magnesium used | 0.33 grams | Balance |
8. | Mass of oxygen in compound | 0.10 grams | 0.43-0.33 |
9. | Percentage of oxygen in compound | 23.26% | 0.10/0.43 |
10. | Percentage of magnesium in compound | 76.74% | 0.33/0.43 |
11. | Percentage deviation from theoretically calculated value | 27.9% | ((76.74-60.00)/60.00)*100 |
Substance | Element or compound | Metal or nonmetal | Physical Phase | Color | Combustibility | Symbol or formula |
Magnesium | Element | Metal | Solid | Gray/Silver | Yes | Mg |
Oxygen | Element | Nonmetal | Gas | Colorless | No | O 2 |
Magnesium Oxide | Compound | Neither | Solid | Gray/White | No | MgO |
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