Ionic EquilibriumHard
Question
The ratio of dissociation constant of two weak acids HA and HB is 4. At what moar concentration ratio, the two acids will have same pH in separate solutions:
Options
A.2
B.0.5
C.4
D.0.25
Solution
Ka = 
(∴ [H+] = [A-])
and Kb =
(∴ [H+] = [B-])
Also H+ are same ∴
(∴ [H+] = [A-])and Kb =
(∴ [H+] = [B-])Also H+ are same ∴
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