Practice question

MCQ

Question

The degree of dissociation of a weak electrolyte is 0.05, and its molar conductivity is 19 S cm² mol⁻¹. What is its Lambdam° ?

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95 S cm² mol⁻¹ 190 S cm² mol⁻¹ 9.5 S cm² mol⁻¹ 380 S cm² mol⁻¹ Correct

Explanation

α = (Lambdam/Lambdam°) , 0.05 = (19/Lambdam°) , Lambdam° = 380 S cm² mol⁻¹ .

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