Question

Why do strong acids dissociate more?

Answer 1

Strong Acids:

• Strong acids are those acids that have a smaller value of pH and a large value of acid dissociation constant.
• Now, $\mathrm{pH}=-\log \left[{\mathrm{H}}^{+}\right]$
• So, the small value of pH indicates the large concentration of hydrogen ions in the solution.
• Now, the concentration of hydrogen ions increases in the solution by the dissociation of acid. So, the more will be the dissociation stronger will be acid.

Example: Hydrochloric acid

$\underset{\mathrm{Hydrochloric}\mathrm{acid}}{\mathrm{HCl}\left(\mathrm{aq}\right)}\to \underset{\mathrm{Hydrogen}\mathrm{ion}}{{\mathrm{H}}^{+}\left(\mathrm{aq}\right)}+\underset{\mathrm{Chloride}\mathrm{ion}}{{\mathrm{Cl}}^{-}\left(\mathrm{aq}\right)}$