You are asked to prepare 500 mL of a 0.150 M acetate buffer at pH 4.50 using only pure acetic acid, 3.00 M NaOH, and water. Calculate the quantities needed for each of the following steps in the buffer preparation.
1. Add acetic acid to ~400 mL of water in a 500 mL beaker. How many grams of acetic acid do you need?
2. Add 3.00 M NaOH solution while stirring and monitoring the pH with a pH electrode until the pH is 4.50. What volume of NaOH solution do you calculate that you will need? (Ignore activity coefficients.)