Buffer

The video tutorial explains the concept of PHA buffer solutions, which consist of a buffering agent, typically a mild acid or base dissolved in water. It highlights the significance of maintaining specific pH ranges for biochemical processes and describes how body fluids, such as blood, function as natural buffer solutions to stabilize pH levels.

What types of substances are typically used as buffering agents in PHA buffer solutions?

How does the presence of a buffering agent affect the pH of a solution?