The pKaos of formic acid, hydrofluoric acid, acetic acid and hydrazoic acid are 3.74, 3.17, 4.74 and4.72, respectively, which of the following acid will have largest degree of dissociation?

The $p K_{a}^{o} s$ of formic acid, hydrofluoric acid, acetic acid and hydrazoic acid are 3.74, 3.17, 4.74 and4.72, respectively, which of the following acid will have largest degree of dissociation?

A
0.1 M Formic acid
B
0.1 M Acetic acid
C
0.1 M Hydrofluoric acid
D
0.1 M Hydrazoic acid

Solution:

The degree of dissociation is $α = \sqrt{K_{a} / c}$ . For equimolar solution of acid, the larger the value of $K_{a}$ , larger the degree of dissociation. Larger the value of $K_{a}$ implies minimum value of $p K_{a}^{o}$ .

NRC Full Form – National Register of Citizens

Distance Speed Time Formula

Refractive Index Formula

Mass Formula

Electric Current Formula

Ohm’s Law Formula

Wavelength Formula

Electric Power Formula

Resistivity Formula

Solution:

Related content