Practice question

MCQ

Question

The conductivity of a 0.002 M weak electrolyte solution is 8 × 10⁻⁵ S cm⁻¹. What is its molar conductivity?

Options

Choose one · Correct answer highlighted

20 S cm² mol⁻¹ 40 S cm² mol⁻¹ Correct 80 S cm² mol⁻¹ 4 S cm² mol⁻¹

Explanation

Lambdam = (kappa × 1000/c) = (8 × 10⁻⁵ × 1000/0.002) = 40 S cm² mol⁻¹ .

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