. Which of the following would weigh the highest

Which of the following would weigh the highest

(a) 0.2 mole of sucrose (C₁₂H₂₂O₁₁)

(b) 2 moles of CO₂

(c) 2 moles of CaCO₃

(d) 10 moles of H O

Best Answer

Answer

(c)

Weight of a sample in gram = number of moles × molar mass

(a) 0.2 moles of C₁₂H₂₂O₁₁ = 0.2 × 342 = 68.4 g

(b) 2 moles of CO₂ = 2×44 = 88 g

(c) 2 moles of CaCO₃ = 2×100 = 200 g

(d) 10 moles of H₂O = 10×18 = 180 g

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