Which of the following will have the maximum weight?
- A0.2 mole of sucrose (C12H22O11)
- B2 moles of CO2
- C2 moles of CaCO3
- DNone of the above
Show answer and explanation
Correct answer: (c) 2 moles of CaCO3
Explanation
Mass = moles × molar mass:
- 0.2 mol of sucrose (C₁₂H₂₂O₁₁): molar mass 342 g, so 68.4 g
- 2 mol of CO₂: molar mass 44 g, so 88 g
- 2 mol of CaCO₃: molar mass 100 g, so 200 g
2 moles of CaCO₃ weigh the most.