Question

Calculate the pH of each of the following buffered solutions.

(a) 0.13 M acetic acid / 0.25 M sodium acetate

(b) 0.25 M acetic acid / 0.13 M sodium acetate

(c) 0.23 M acetic acid / 0.23 M sodium acetate

(d) 0.50 M C₂H₅NH₂ / 0.25 M C₂H₅NH₃Cl

(e) 0.69 M C₂H₅NH₂ / 0.69 M C₂H₅NH₃Cl