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Phenolphthalein is used as an indicator because the color of the solution is changed according to pH.
One would add phenolphthalein as an indicator for bases with a pH of 8.2 to 10.0 If the phenolphthalein changes color from colorless to pink or red, a base with a pH between the aforementioned pH values is present.
An indicator is not necessary; but if you want phenolphthalein is colorless at pH=7.
Phenolphthalein is pink in basic solutions.Phenolphthalein is used as an indicator in volumetry - acid-base titration.
Phenolphtalein is used as indicator for titration in chemistry. Also as a pH indicator: pink in basic solutions and colorless in acidic solutions. Phenolphatelein can be used to check blood in forensic problems or as a component of some inks.
Sodium hydroxide is a base. And phenolphthalein is a pH indicator that changes color at around a pH of 8.4, so you can tell when your solution that endpoint.
The phenolphthalein indicator is pink in basic solutions.
Phenolphthalein is used as an indicator because the color of the solution is changed according to pH.
it is used as an acid-base indicator
One would add phenolphthalein as an indicator for bases with a pH of 8.2 to 10.0 If the phenolphthalein changes color from colorless to pink or red, a base with a pH between the aforementioned pH values is present.
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THe universal indicator is more accurate as it can detect different ranges in the pH, whereas phenolphthalein only changes at a ph of 8.0
Phenolphthalein is the indicator to see if it is more acidic or more basic
it acts as acid base indicator
it acts as acid base indicator
A few drops of any indicator is generally enough to get a reading.
An indicator is not necessary; but if you want phenolphthalein is colorless at pH=7.