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OpenStudy (anonymous):
What is the role of an indicator?
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OpenStudy (lena772):
pH indicator is a halochromic chemical compound that is added in small amounts to a solution so that the pH (acidity or basicity) of the solution can be determined
OpenStudy (anonymous):
An acid-base indicator is a (most of the time: organic) weak acid or a weak base. The undissociated form of the indicator is a different color than the dissociated form. It indicates an approximate pH, the 'dye/acid or base' changes colour at certain pH values. So it tells you when your solution turns more acidic or more alkaline.
OpenStudy (anonymous):
@Lena772 if you want/can go ahead and shorten that
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