Carboxylic Acid and Acid DerivativesHard
Question
The conductivity of 0.01 mol/dm3 aqueous acetic acid at 300K is 19.5 × 10-5 ohm-1 cm-1 and the maximum limiting molar conductivity of acetic acid at the same temperature is 390 ohm-1 cm2 mol-1. The degree of dissociation of acetic acid is.
Options
A.0.5
B.0.05
C.5 × 10-3
D.5 × 10-7
Solution
Molar conductance of 0.01 mol/dm3
∴ μ = k ×
= 19.5 × 10-5 × 
= 19.5 ohm-1 cm2 mol-1
∴ α =
= 0.05
∴ μ = k ×
= 19.5 × 10-5 × = 19.5 ohm-1 cm2 mol-1
∴ α =
= 0.05Create a free account to view solution
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