\(pH = pK_a + \log \, \frac{[salt]}{[Acid]}\)
If \(pH > pK_a \Rightarrow [salt] > [acid]\)
or Concentration of basic part is more than acidic part while if \(pH < pK_a ; (Acidic\, part) > (Basic\, part)\).
Thus, for \(CH_3 COOH\) at \(pH = 7\) ; \(CH_3COO^{\circleddash}\) exist more \((pK_a = 4.8)\)
& for \(CH_3CH_2OH\) at \(pH = 7\) ; \(CH_3CH_2OH\) exist more \((pK_a =16)\)
$\left[\right.$ આપેલ : $pK _{ b }\left( NH _3\right)=4.745$
$\log 2=0.301$
$\log 3=0.477$
$T =298\,K ]$