Adiprotic acid, h2a, has acid dissociation constants of ka1=3.58×10−4 and ka2=2.21×10−12. calculate the ph and molar concentrations of h2a, ha−, and a2− at equilibrium for each of the solutions. a 0.175 m solution of h2a. ph = [h2a]= m [ha−]= m [a2−]= m a 0.175 m solution of naha. ph= [h2a]= m [ha−]= m [a2−]= m a 0.175 m solution of na2a. ph= [h2a]= m [ha−]= m [a2−]= m