Answer: When you reach the equivalence point of a titration, the solution undergoes a color change. The specific color change depends on the indicator used in the titration. An indicator is a substance that changes color based on the pH of the solution.
For example, if you are titrating an acid with a base and you are using phenolphthalein as the indicator, the solution will turn from colorless to pink when you reach the equivalence point. This indicates that the acid has been neutralized by the base.
On the other hand, if you are using bromothymol blue as the indicator, the solution may change from yellow to blue at the equivalence point.
It's important to note that the exact color change at the equivalence point can vary depending on the indicator and the specific reaction being titrated. Therefore, it's crucial to consult the indicator's color change chart or the specific experiment instructions to determine the color change at the equivalence point for that particular titration.