MDCAT Chemistry MCQ #2814

What mass of CO₂ is produced from 10.0 g of C₂H₆ and excess O₂? (Molar mass C₂H₆ = 30.07 g/mol)

MDCAT Chemistry MCQ #2814

  1. Question 1

    Q1. What mass of CO₂ is produced from 10.0 g of C₂H₆ and excess O₂? (Molar mass C₂H₆ = 30.07 g/mol)

    • A) 29.3 g
    • B) 22.0 g
    • C) 14.7 g
    • D) 36.7 g

    Answer: 22.0 g

    Explanation: Molar ratio 2:4 → (10/30.07)×(44.01/30.07) = 22.0 g. C uses CO instead of CO₂.