The number of moles of CO2 which contains 16 g of oxygen is
Correct answer: B. 0.50
- A. 0.25
- B. 0.50
- C. 0.75
- D. 100
Explanation
One mole of CO2 has a mass of 44 g and 32 g of O2.So 16 g of O2 have 22 g of CO2 or 0.5 moles of it.Therefore, the mathematical calculation shows that the only option that is correct is (b).
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About Fundamental Concepts of Chemistry
Mole calculations connect mass, number of particles and Avogadro's number, while balanced equations provide the mole ratios used in stoichiometry. Questions cover limiting and excess reactants, theoretical yield and percentage yield, including identifying which reactant is consumed first and comparing the actual product with the maximum possible product.
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