Embibe Experts Solutions for Chapter: Ionic Equilibrium, Exercise 1: TS EAMCET Medical 2019 (8-May Shift-2)

The Lewis acid in the following is

At $298 \mathrm{K},$ the ratio of dissociated water to that of undissociated water is [Assume pure water]

Match the following

Acetylsalicylic acid has ${\mathrm{pK}}_{\mathrm{a}}$ value $3.5.$ The $\mathrm{pH}$ of gastric juice in human stomach is $2-3$ and the pH in the small intestine is approximately $7.4.$ Then acetylsalicylic acid will be

If the $\mathrm{pH}$ of a solution containing $10 \mathrm{mL}$ of $0.5 \mathrm{M} {\mathrm{CH}}_3\mathrm{COOH}$ and $10 \mathrm{mL}$ of $0.25 \mathrm{M} \mathrm{NaOH}$ is $5$. What is the ${\mathrm{pK}}_{\mathrm{a}}$ of the acid?

Calculate the $\mathrm{pH}$ of a solution containing $0.2\mathrm{M} {\mathrm{CH}}_3\mathrm{COOH}$ and $0.1M {\mathrm{CH}}_3\mathrm{COONa}.$ The ${\mathrm{K}}_{\mathrm{a}}$ of ${\mathrm{CH}}_3\mathrm{COOH}=1.8\times {10}^{-5}\left(-\log \left(1.8\times {10}^{-5}\right)=4.74\right)$

At ${25}^o\mathrm{C}$, the concentration of ${\mathrm{PbCl}}_2$ dissolved per cubic decimeter $\left({\mathrm{dm}}^3\right)$ of water is $1.62\times {10}^{-2}$ $\mathrm{moles}$. Its solubility product $\left({\mathrm{K}}_{\mathrm{SP}}\right)$ at ${25}^o\mathrm{C}$ is_______