(ii) Phenolphthalein indicator represented by HIn, is a weak acid that dissociates in water as follows: Hln(aq) + H*(aq)+ In (aq) Colourless red colour Explain the colour change observed at the end point of an acid-base titration where phenolphthalein is used as indicator with the acid in the conical flask.

(ii) Phenolphthalein indicator represented by HIn, is a weak acid that dissociates in water as follows: Hln(aq) + H*(aq)+ In (aq) Colourless red colour Explain the colour change observed at the end point of an acid-base titration where phenolphthalein is used as indicator with the acid in the conical flask.

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter15: Acid–base Equilibria

Section: Chapter Questions

Problem 99AP

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