Answer :
When a modest amount of a strong acid or base is added, a buffered solution resists pH changes.
A mixture of a weak acid and its conjugate base makes up a buffer.
What is a buffer ?
When an acidic or basic component is added, a solution that can resist pH shift is called a buffer. As a result, the pH of the solution is kept largely steady by its capacity to reduce modest additions of acid or base. This is crucial for procedures and/or chemical reactions that call for a range of pH values that is precise and consistent. Buffer solutions have a functional pH range and capacity that define how much neutralizing of acid or base is possible before pH changes, as well as how much pH will change.
Who or what makes up a buffer?
A buffer must include either a weak acid and its conjugate base or a weak base and its conjugate acid in order to successfully maintain a pH range.
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