MDCAT Chemistry MCQ #2794

How many moles of H₂O are produced when 2 moles of C₃H₈ combust completely? (Balanced equation: C₃H₈ + 5O₂ → 3CO₂ + 4H₂O)

MDCAT Chemistry MCQ #2794

  1. Question 1

    Q1. How many moles of H₂O are produced when 2 moles of C₃H₈ combust completely? (Balanced equation: C₃H₈ + 5O₂ → 3CO₂ + 4H₂O)

    • A) 4 moles
    • B) 6 moles
    • C) 8 moles
    • D) 2 moles

    Answer: 8 moles

    Explanation: 2 moles C₃H₈ × 4 H₂O/1 C₃H₈ = 8 moles. Option A ignores stoichiometric ratio.