Use the Henderson-Hasselbalch equation to perform the given calculations, compute the volume of the 0.500 M acetic acid and the volume of deionized water necessary to make 60.0mL of 0.250 M CH3COOH . The Ka of acetic acid = 1.8 × 10-5..also: estimate the mass of solid sodium acetate required to mix with 60.0 mL of 0.250 M acetic acid to prepare a pH 4 buffer.
What is the molarity of the Na2S2O3 solution if a 0.150 g sample of KIO3 required 10.7 mL of Na2S2O3 solution for its standardization?