Acid base indicators colour change qijycura218442685

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Acid base indicators colour change.

This page describes how simple acid base indicators The pH range of icators don t change colour sharply at where the acid , base are both

A variety of indicators change color at various pH levels A properly selected acid base indicator can be used to visuallyindicate" the approximate pH of a sample An indicator is usually some weak organic acid or base dye that changes colors at definite pH values. Acid base indicatorsalso known as pH indicators) are substances which change color with pH They are usually weak acids or nsider an indicator which is a weak acid, with the formula HIn At equilibrium, the following chemical equation is established.

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