A 270.0 mL buffer solution is 0.300 M in acetic acid and 0.300 M in sodium acetate. For acetic acid, Ka=1.8×10−5.
Part A: What is the initial pH of this solution?
Express your answer using two decimal places.
Part B: What is the pH after addition of 0.0100 mol of HCl?
Express your answer using two decimal places.
Part C: What is the pH after addition of 0.0100 mol of NaOH?
Express your answer using two decimal places.