Question #92e99

1 Answer
May 28, 2016



An indicator is a weak acid in which the conjugate base has a visibly different color. During a neutralization reaction, the pH changes rapidly near the equivalence point. As the pH goes past the pKa of the indicator, the solution changes color.

For most accurate results choose an indicator with a pKa similar to the anticipated pH at the equivalence point of the titration.