Here's why:
* Buffers resist changes in pH: They do this by reacting with both acids and bases, neutralizing them and preventing large shifts in hydrogen ion concentration ([H+]).
* How they work: A buffer system typically consists of a weak acid and its conjugate base (or a weak base and its conjugate acid). When an acid is added, the base component of the buffer neutralizes it. When a base is added, the acid component neutralizes it.
Example:
A common buffer system is carbonic acid (H2CO3) and bicarbonate (HCO3-) in our blood. This system helps maintain the pH of blood within a narrow range, essential for proper body function.
