MDCAT Chemistry MCQ #4535

A cracking reaction converts C₁₀H₂₂ to C₄H₁₀ and C₆H₁₂. If 80% yield is achieved, what mass of C₄H₁₀ is produced from 58 g C₁₀H₂₂?

MDCAT Chemistry MCQ #4535

  1. Question 1

    Q1. A cracking reaction converts C₁₀H₂₂ to C₄H₁₀ and C₆H₁₂. If 80% yield is achieved, what mass of C₄H₁₀ is produced from 58 g C₁₀H₂₂?

    • A) 18.4 g
    • B) 23.0 g
    • C) 28.8 g
    • D) 34.5 g

    Answer: 23.0 g

    Explanation: Molar mass C₁₀H₂₂ = 142 g/mol. 58 g = 0.41 mol. 80% yield = 0.33 mol C₄H₁₀ (23 g). Distractor C uses 100% yield.