How many Good's buffer agents exist? Question ea6ed. Question 0d9d2. Question 26e0c. Question c5de8. Buffers are characterized by the pH range over which they can maintain a more or less constant pH and by their buffer capacity, the amount of strong acid or base that can be absorbed before the pH changes significantly. Although the useful pH range of a buffer depends strongly on the chemical properties of the weak acid and weak base used to prepare the buffer i.
The more concentrated the buffer solution, the greater its buffer capacity. If the buffer capacity is 10 times larger, then the buffer solution can absorb 10 times more strong acid or base before undergoing a significant change in pH. A buffer maintains a relatively constant pH when acid or base is added to a solution. The addition of even tiny volumes of 0.
For buffer concentrations of at least 0. Buffers function best when the pK a of the conjugate weak acid used is close to the desired working range of the buffer. This turns out to be the case when the concentrations of the conjugate acid and conjugate base are approximately equal within about a factor of Rafique Rafique 5 5 gold badges 14 14 silver badges 19 19 bronze badges.
It addresses all elementary questions about buffer capacity. Add a comment. Active Oldest Votes. Improve this answer. Zhe Zhe Featured on Meta. Now live: A fully responsive profile. Get Android App. Get iOS App. Solution: Buffer capacity of a buffer is maximum when the concentration of the weak acid and its salt or weak base and its salt are equal i. The biological function of antibodies is Chemistry in Everyday Life. The equivalent mass of acid is Some Basic Concepts of Chemistry.
Mass of acetic acid required to neutralize cc of 0.
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