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what is mean by a indicator in titration?

what is mean by a indicator in titration?

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5 Answers

Ruchi Shaw
askIITians Faculty 35 Points
7 years ago
Indicator is a substance that changes the color of a solution in order to detect the presence of certain ions in it. It can also be used to indicate the presence of completion of a reaction in order to test for a chemical reaction by color change

Thanks & Regards
Ruchi Shaw
askIITians faculty
Ruchi Shaw
askIITians Faculty 35 Points
7 years ago
Indicator is a substance that changes the color of a solution in order to detct the presence of certain ions in it. It can also be used to indicate the completion of a certain reaction in order to test for a chemical reaction by color change.

Thanks & Regards
Ruchi Shaw
askIITians faculty
Vasantha Kumari
askIITians Faculty 38 Points
7 years ago

While performing a titration, we slowly add one solution of a known concentration to another known volume but without knowing concentration. This process of adding titrant to another solution is performed until neutralization is achieved.

So, in order to determine the concentration of unknown solution, an indicator is required to check if the standard solution has been added to fully react with unknown solution. And an indicator is a vital as it acts as a key success for a reaction.

Thanks & Regards,

Vasantha Sivaraj,

askIITians faculty

Aarti Gupta
askIITians Faculty 300 Points
7 years ago
Titration is the process of determining the volumes of reagents(or solutions),required for the just completion of a reaction.The point at which the reaction is just completed is called the equivalence point,and this is judged by adding a very small amount of an auxillary reagent,called indicator.The indicator produces a clear visual change as soon as the reaction is overstepped;either a change in colour take place or a turbidity is produced in the reaction mixture.For example phenolpthalein,methyl orange etc.
Thanks & Regard
Aarti Gupta
askiitians Faculty
Ruchi Shaw
askIITians Faculty 35 Points
7 years ago
Indicators are special chemicals that change color if there is a change in the pH ( caused by adding an acid or alkali ) .Indicators change colors at different pH values.For example, litmus changes color at pH 7.

Thanks & Regards
Ruchi Shaw
askIITians faculty

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