Chemistry A-Level
Indicator
What Indicator means in Chemistry A-Level, as defined for AQA.
Definition of Indicator
Check what you remember
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Reference: AQA
A weak acid whose two forms are different colours, usable only if its colour change range falls entirely within the steep section of the pH curve.
Topics that use Indicator
- pH curves, titrations and indicators (A-level only) (AQA A-Level)
Related terms
- concordant titres
- Equivalence point
- Required practical 9
- sources of error
- standard solution
- volume increments
- buffer region
- Colour change range
Using Indicator in the exam
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