Answer Happy

Using the Henderson-Hasselbalch equation, calculate the predicted pH value for each buffer solution based on the volumes given in Table 2. Assume the concentrations of the stock solutions are the same. The pka of acetic acid is 4.75. Show your work.
Buffer A B C E Sodium Acetate (g) 4.0g 5 5 Table 2: Buffer Solutions and pH Readings Volume of Acetic Acid (mL) Volume of Sodium Acetate (ml) 5 10 Table 1: Sodium Acetate Data 1 1 Molarity of Sodium Acetate (M) 0.49M 1 1 10 5 pH 4.2 3.6 3.1 4.9 4.6