Hello there, my text book says 'diluting a buffer has no effect on its pH', but I don't understand why though.
This is the Ka expression of a buffer solution
Ka = [Conjugate base][H3O+ ]/[Conjugate acid]
My textbook says pH doesn't change since both [conjugate base] and [conjugate acid] are diluted equally.
But if you dilute this solution, wouldn't that change the concentration of everything including H3O+?
Thank you, I appreciate your help.