Many common acids contain one or more O-H bonds.
These are called oxyacids. To behave as an acid, the substance must lose a proton. Buffers Buffers are solutions that resist a change in pH upon addition of small amounts of an acid or base. Since acid-base reactions in aqueous solution involve the transfer of a proton from the acid to the base, a buffer must contain significant amounts of both an acid and a base. Now, we add sodium acetate.