Published by:
CGP EDU Academic Team
Published on: August 13, 2026
If pK a = – log K a = 4, and K a = Cx 2 then Van’t Hoff factor for weak monobasic acid when C = 0.01 M is :
Text Solution
Verified by ExpertsThe correct answer is:
C
HA 
H + + A¯
i = [1 + (y – 1) x] = 1 + x
pK a = 4 = – log K a
∴ K a = 10 –4 = Cx 2 1 × 10
–4 = 0.01 × x 2
⇒ x = 0.1
∴ i = 1 + x = 1.1
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