Titration Colour Change
Age 16 · Chemistry
A burette delivers liquid drop by drop into a flask. An indicator in the flask changes colour when the added amount reaches the equivalence point.
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Age 16: open this week
Browse Age 16In the picture
- Stopcock: the valve that controls drops leaving the burette
- Burette scale: the volume markings used to read how much liquid has been added
- Flask liquid: the pale pink colour produced by the indicator at the change point
- White tile: the plain background that makes the liquid colour easier to see
Examples
- Adding vinegar to red cabbage water until it turns pink
- Testing swimming pool water with a colour-change test kit
Key takeaways
- The indicator changes colour at the equivalence point
- The burette reading before and after gives the volume of titrant used
Quiz: Titration Colour Change (Age 16)
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At what point does the indicator change colour in a titration?
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How is the volume of titrant used found from a burette?
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What is the white tile used for in this titration setup?
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