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Question
How many moles of oxygen atoms are present in one mole of the following compounds ?
- Al2O3
- CO2
- Cl2O7
- H2SO4
- Al2(SO4)3
Solution
Number of moles of oxygen in the listed compounds are as follows:
- Al2O3: 3 moles of oxygen are present in 1 mole of Al2O3.
- CO2: 2 moles of oxygen are present in 1 mole of CO2.
- Cl2O7: 7 moles of oxygen are present in 1 mole of Cl2O7.
- H2SO4: 4 moles of oxygen are present in 1 mole of H2SO4.
- Al2(SO4)3: 12 moles of oxygen are present in 1 mole of Al2(SO4)3 (4 × 3 moles).
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