How much benzoic acid, Ka = 6.3 X 10-6, will remain undissociated in the aqueous phase of a 50%oil-water emulsion if the initial concentration of benzoic acid in the aqueous phase is 0.5%? The aqueous phase is buffered at pH 5 and the o/w partition coefficient = 6.33. Assume that benzoic acid remains as a * .monomer in the oil phase