Does adding too much indicator affect titration?

Does adding too much indicator affect titration?

Adding too much indicator will force your titration to significantly include the indicator an an interfering analyte component competing with your titrant against the acid or base which you are expecting to measure.

Why do we add a small amount of indicator about 2 to 3 drops and not more?

It’s important to use only a few drops of indicator because if more of the indicator is used into the solution, it could change the pH since the indicator is a weak acid itself. We would ideal only want one or two drops because this would allow for the most accurate color change with the different salts.

Why should you not add too much indicator?

It does affect titration because if you add too much, then it will alter the concentration of whichever solution you are adding it in. If you added it to the acid, it will cause that acid to be more acidic than you may have calculated.

Does phenolphthalein turn pink in water?

Phenolphthalein, an acid-base indicator used to test the pH of a solution, turns pink due to the presence of a weak base. The indicator itself is a weak, colorless acid that forms pink anions when it dissolves in water. It will turn orange when in contact with strongly acidic solutions.

Why phenolphthalein is pink in basic medium?

Phenolphthalein: To the solution of phenolphthalein, we will now add a base. In the above reaction we see that when we add a base, the anion part of the base breaks the C-O bond leading to the formation of ions. It is due to the formation of ions that the solution turns pink.

Which of the following solutions will turn phenolphthalein pink?

LiOH is a base and will turn the colour of phenolphthalein pink. Lime water is a calcium hydroxide solution, Ca(OH)2, which is a base. Lime water was added to the regular water in the solution. Lime water is a base, so when the phenolphthalein was added to the solution, it turned the solution pink.