If solution of weak acid has same pH as solution of weak acid

CHEMISTRY · Subjective · A Level · Chemistry · Acids and bases · Acids and bases

Problem

a\,\text{M}

solution of weak acid

\text{HA}

has same pH as

b\,\text{M}

solution of weak acid

\text{HB}

. Also if

\frac{a}{b} = 4

, then the ratio of dissociation constant of two acids

\text{HB}

and

\text{HA}

will be .....