$p{K_a}$ of a weak acid is defined as
$log_{10}{K_a}$
$\frac{1}{{lo{g_{10}}{K_a}}}$
$log _{10}\frac{1}{{{K_a}}}$
$-log_{10}\frac{1}{{{K_a}}}$
(c) $p{K_a} = {\log _{10}}\frac{1}{{{K_a}}}$
Dissociation constat of weak acid $HA$ is $1.8 \times {10^{ – 4}}$ calculate Dissociation constant of its conjugate base ${A^ – }$
What is polyprotic acid ? Give examples of polyprotic acid and its ionization.
Derive ${K_a} \times {K_b} = {K_w}$ equation.
${K_a}$ of $C{H_3}COOH$ is $1.76 \times {10^{ – 5}}$ at $298$ $K$ temperature. Calculate dissociation constant of its conjugate base.
The molar conductivity of a solution of a weak acid $HX (0.01\ M )$ is $10$ times smaller than the molar conductivity of a solution of a weak acid $HY (0.10 \ M )$. If $\lambda_{ X }^0 \approx \lambda_{ Y ^{-}}^0$, the difference in their $pK _{ a }$ values, $pK _{ a }( HX )- pK _{ a }( HY )$, is (consider degree of ionization of both acids to be $\ll 1$ )
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