lactic acid has a pKa of 3.08. What is the approximate degree of dissociation of a .35M solution of lactic acid? I do not know how to start it thanks!!

Answer 1

Call lactic acid HL.
HL ==> H^+ + L^-
You know pKa. Solve for (H^+).
So percent ionization is [(H^+)/0.35]*100= ?? and degree of ionization is just the percent divided by 100.