Question

Define an acid-base indicator

Answer 1

Explanation:

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• Acid - Base indicators (also known as pH indicators) are substances which change colour with pH. They are usually weak acids 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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Answer 2

Answer:

Acid - base indicators (also known as pH indicators) are substances which change color with pH.