Question

1. Calculate the mass (in g) of solid NaCH3CO2*3H2O needed to make 150 mL of buffer solution when 10.0 mL of 3.0 M CH3COOH are used.

2. What should the pH be after 1.0 mL of 6.0 M HCl is added to 50 mL of water?

3. What should the pH be after 1.0 mL of 6.0 M NaOH is added to 50 mL of water?

4. For each of these desired pH values, choose a weak acid-conjugate base pair from your textbook that could be used to prepare a buffer solution with that pH. Calculate the desired [A-]/[HA] ratio in each case. a) pH = 6.00 b) pH = 8.00