Djjdieheh6863 Djjdieheh6863 19-05-2023 Chemistry contestada A buffer (1 l) with a ph of 4.27 is prepared by mixing equal volumes of 150 mm acetic acid and 50 mm sodium acetate. how much of 5 m naoh needs to be added to the solution to raise the ph to the pka value of acetic acid (pka 4.75)