Which of the following has maximum mass?
Correct answer: C. 25 g moles of water
- A. 25 g of iodine
- B. 25 g atoms of oxygen
- C. 25 g moles of water
- D. 25 g of nitrogen gas
Explanation
Mass of I2 = 25 g mass of O atoms= 25 x 16= 400 g mass of H2O = 25 x 18= 450 g mass of N2 gas= 25 g So, H20 has the maximum mass. Hence, option c is correct.
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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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