How Do You Change Buffer Capacity In A Solution?
Buffers are solutions that resist change in pH levels. A buffer is a mixture of a weak acid and its conjugate base (or a weak base and its conjugate acid). When strong acid or base is added to a buffer, some of the weak acid or base is neutralized to form its conjugate; although the proportion of acid to base changes, the change in pH is slight. All buffers can only soak up so much strong acid or base, however. The amount of acid or base a buffer can take before the pH starts to change dramatically is called the capacity. Measure the pH of your buffer solution using the pH meter or pH paper. If you’re using pH paper, you may only be able to obtain a rough estimate of the pH, but this may be sufficient depending on how you plan to use your buffer solution. Calculate the ratio of weak acid to conjugate base in the buffer solution using the Henderson-Hasselbalch equation, where pH = pKa + log (concentration of conjugate base / concentration of weak acid) . The pKa is the negative log of t
