Calculate the pH at which an acid indicator with K_a =1.0 xx 10^(-5) changes colour when the indicator concentration is 1.0 xx 10^(-3) M.

Calculate the pH at which an acid indicator with K_a =1.0 xx 10^(-5) c

1.	Calculate the pH at which an acid indicator with K_a =1.0 xx 10^(-5) changes colour when the indicator concentration is 1.0 xx 10^(-3) M.
Answer» SOLUTION :` PH =P^(KIn)= - log KIn =-log 10 ^(_5)= 5`