If you titrate nitric acid with sodium hydroxide, you will add a drop or two of phenolphthalein to the sample of acid before you begin adding the sodium hydroxide. Why is the indicator added?
1 Answer
Nov 16, 2015
The Acid-Base indicator from its name it means that it will indicate that the equivalence point (or end point) of the titration is reached.
Explanation:
The Acid-Base indicator from its name it means that it will indicate that the equivalence point (or end point) of the titration is reached.
At the equivalence point,
The phenolphthalein is an acid-base indicator that is colourless in acidic medium and
Watch this video that explains in details the acid - base titration.
Lab Demonstration | Acid - Base Titration.
