Ionization of Acids and Bases

The degree of dissociation is inversely proportional to the square root of the concentration of the weak base.

The degree of dissociation is _____ proportional to the square root of the concentration of the weak base.

What is the relationship between degree of dissociation and dissociation constant of the weak base?

Explain the reason for the smaller value of higher order ionization constants than the lower order ionization constant of polyacidic bases.

Define polyacidic bases and give some examples.

Ionisation constant of  ${\mathrm{CH}}_3\mathrm{COOH}$ is $1.7\times {10}^{-5}$ and concentration of ${\mathrm{H}}^{+}$ ions is $3.4\times {10}^{-4}$. Then, the initial concentration of ${\mathrm{CH}}_3\mathrm{COOH}$ is 

The ${\mathrm{K}}_{\mathrm{a}}$ values of formic acid and acetic acid are respectively $1.77\times {10}^{-4}$ and $1.75\times {10}^{-5}$. The ratio of acid strength of $0.1 \mathrm{N}$ acids is

Which of the following is a weak alkali?

Define the degree of dissociation of electrolytes.

The $\mathrm{pH}$ of an aqueous solution of ${10}^{-8}\mathrm{MHCl}$ is

${\mathrm{NH}}_3$ is dissolved in water.

${\mathrm{NH}}_3 + {\mathrm{H}}_2\mathrm{O} \leftrightharpoons {{\mathrm{NH}}_4}^{+}+{\mathrm{OH}}^{-}$

Its base dissociation constant is given by:

Select the weak base from the following:

The increasing order of base strength is

Arrange in decreasing order of acidity?

(P)  (Q)  (R)  (S) 

The correct order of increasing $\left[{\mathrm{H}}_3{\mathrm{O}}^{+}\right]$ in the following aqueous solution is 

What is the decreasing order of strength of bases? 
${\mathrm{OH}}^{-}, {\mathrm{NH}}_2^{-}, \mathrm{H}-\mathrm{C}\equiv {\mathrm{C}}^{-} \mathrm{and} {\mathrm{CH}}_3-{\mathrm{CH}}_2^{-}$

The relation between $\mathrm{p}\text{H}, \mathrm{p}{\text{K}}_{\mathrm{a}}$ and concentration $\mathrm{c}$ of the solution of a weak acid can be written as _____.

(A) $\mathrm{pH}=\frac{1}{2}\left({\mathrm{pK}}_{\mathrm{a}}-\mathrm{logc}\right)$

(B) $\mathrm{pH}=\frac{1}{2}\left({\mathrm{pK}}_{\mathrm{a}}+\mathrm{logc}\right)$

(C) $\mathrm{pH}=\left({\mathrm{pK}}_{\mathrm{a}}-\mathrm{logc}\right)$

Enter the correct answer as A, B or C.

If the acid-base reaction $\mathrm{HA}\left(\mathrm{aq}\right)+{\mathrm{B}}^{-}\left(\mathrm{aq}\right)\rightleftharpoons \mathrm{HB}\left(\mathrm{aq}\right)+{\mathrm{A}}^{-}\left(\mathrm{aq}\right)$ has a ${\mathrm{K}}_{\mathrm{eq}}={10}^{-4}$ , then is the given statement  correct or incorrect?

 ${\mathrm{A}}^{-}$ is stronger base than ${\mathrm{B}}^{-}$.

If the acid-base reaction $\mathrm{HA}\left(\mathrm{aq}\right)+{\mathrm{B}}^{-}\left(\mathrm{aq}\right)\rightleftharpoons \mathrm{HB}\left(\mathrm{aq}\right)+{\mathrm{A}}^{-}\left(\mathrm{aq}\right)$ has a ${\mathrm{K}}_{\mathrm{eq}}={10}^{-4}$  then the given statement is correct or incorrect?

${\mathrm{B}}^{-}$ is stronger acid than ${\mathrm{A}}^{-}$.

If the acid-base reaction ${\mathrm{HA}}_{\left(\mathrm{aq}\right)}+{{\mathrm{B}}^{-}}_{\left(\mathrm{aq}\right)}\rightleftharpoons {\mathrm{HB}}_{\left(\mathrm{aq}\right)}+{{\mathrm{A}}^{-}}_{\left(\mathrm{aq}\right)}$ has a ${\mathrm{K}}_{\mathrm{eq}}={10}^{-4}$, which of the following statements are true?

(i)  $\mathrm{HA}$ is more acidic than $\mathrm{HB}$.

(ii) $\mathrm{HB}$ is more acidic than $\mathrm{HA}$.

(iii) $\mathrm{HA}$ and $\mathrm{HB}$ have the same acidity.