I was wonder how I might go about making a buffer solution. I plan to choose an acid and conjugate base (or vice versa) for my chosen pH using the Henderson-Hasselbach equation. But, let's say I choose acetic acid. Should I just pour some acetic acid into a volume of water and let equilibrium arise on its own? Will this produce a buffer? Also, if I were to graph changes in pH over time and I add some acid to the buffer, will the buffer pH simply not change much, or will it exhibit damped motion around the target pH. Thanks in advance.