We can adjust the ph of a buffer, within limits, to bring it to some desired value. for example, if ka for the acid is 1.0 x10 and the amounts of acid and conjugate base are equal, the ph of the buffer solution would be 5.0. if we wish to make a buffer of ph equal to 4.5, we need to simply select volumes of the acid and conjugate base such that the ratio of [acid] to [base] would make h, o] equal to 10 or 3.2 x 10 m. so to make the desired buffer we could use 320 ml of 0.10 m acid and 100 ml of 0.10 m conjugate base. show by calculation that these volumes will give you a buffer solution with ph of 4.5 4.5 9) for the same acid and base in (8), what ratio of volumes of acid and base would you need to get a ph of 5.5? show your calculation. give a set of volumes that satisfies the calculated ratio