a) How many moles of sodium benzoate must be added to 2.5 L of .15 M benzoic acid to form a buffer whose pH is 4.46? Assume the addition of sodium benzoate does not change the total volume of the solution.
b) If a strong base, say potassium hydroxide, was added to the buffer above what would happen to the pH and why?
c) If 120.0 mL of 1.3 M KOH is added to the buffer what would be the new pH.