[cruth]

Hi - I'm in general chemistry II and I'm trying to understand how to find the pH of a buffer system... the concept is confusing to me...

Logically I know that the pH would be dependent on the concentrations of the acid and bases present... and I know that I need to use the Henderson Hasselbalch equation.. but besides that I'm a little lost... even after reading my textbook.

If somebody could please explain to me the general logic behind the approach to this type of problem I would really appreciate it , as I am genuinely interested in learning the theory ... not just trying to avoid doing my homework

thank you~

[Borek]

General logic? Calculate concentration of acid and conjugate base (either from dilution, or from the neutralization stoichiometry), put them into Henderson-Hasselbalch equation. Done.