01-05-2017
Chemistry

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How does an acid base indicator work?

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malbennett malbennett

01-05-2017

Acid - Base Indicators and Titrations. Acid - Base indicators (also known as pHindicators) are substances which change colour with pH. They are usually weakacids or bases, which when dissolved in water dissociate slightly and form ions. Consider an indicator which is a weak acid, with the formula HIn.

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