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The equivalent conductance of monobasic acid at infinite dilution is 348 o h m - 1 c m 2 e q - 1 . If the resistivity of the solution containing 15 g acid (mol. wt 49) in litre is 18.5 ohm cm. What is the % degree of dissociation of acid? Report your answer up to two decimal places without rounding up.

Correct answer

50.74

Step-by-step solution

λ N = k × 1000 N = 1000 × 49 × 1000 18.5 × 15 × 1000 = 176.6 α = λ v λ ∞ = 176.6 348 = 0.5074

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