Question

The p$K_a$ of a weak acid (HA) is 4.5. The pOH of an aqueous buffer solution of HA in which 50% of the acid is ionized is
(a) 7.0
(b) 4.5
(c) 2.5
(d) 9.5

Answer 1

Hello Friend

The answer of u r question is

Option.C

Thank you

Answer 2

${\huge {\mathfrak {Answer :-}}}$

➡️ Option (C)

That's it..