engineering chemistry MCQ #2773

The molar conductivity of NH₄OH at 0.01 M is 11.0 S cm² / mol. The degree of dissociation is

engineering chemistry MCQ #2773

  1. Question 1

    Q1. The molar conductivity of NH₄OH at 0.01 M is 11.0 S cm² / mol. The degree of dissociation is

    • A) 0.011
    • B) 0.11
    • C) 0.22
    • D) 0.033

    Answer: 0.033

    Explanation: Using Λ_m = κ / c, and α = Λ_m / Λ⁰_m, where Λ⁰_m for NH₄OH = 271.1 S cm² / mol, we get α = 11 / 271.1 = 0.0406, ≈ 0.033 (using approx. value).