Mookie9601 Mookie9601 22-05-2023 Chemistry contestada what is the buffer range (for an effective 2.0 ph unit) for a benzoic acid/sodium benzoate buffer? [ka for benzoic acid is 6.3 × 10-5] 5.3 -7.3 4.7 - 6.7 3.2 -5.2 7.4 -9.4 8.8 - 10.8