Question

The indicator phenolphthalein is added to the _____________.

Answer 1

The indicator, phenolphthalein is added to the analyte  as an indicator in acid–base titrations.

Phenolphthalein is a color changing  indicator for acid base titrations.

Titration is a quantitative  technique used to find  concentration of an unknown solution(analyte ) from a solution of known concentration. which is the titrant.

Now the procedure is set up that, the titrant  is in the  burette and  added to the analyte with known volume)in a conical flask in the presence of an indicator till the endpoint of the reaction.

This  is marked  by a sharp change of color to explain the point when the titrant neutralizes the analyte solution.(phenolphthalein is colorless in acidic solutions but turns pink in basic solutions).

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