Titrations (Oxford AQA IGCSE Chemistry)
Revision Note
Author
Philippa PlattExpertise
Chemistry
Performing a Titration
What are titrations used for?
Titrations are a method of analysing the concentration of solutions or for preparing soluble salts
They can determine exactly how much alkali is needed to neutralise a quantity of acid – and vice versa
Indicators are used to show the endpoint in a titration
Table of common indicators
Indicator | Colour in acid | Colour in alkali | Colour when neutral |
---|---|---|---|
phenolphthalein | pink | colourless | colourless |
methyl orange | red | yellow | orange |
The method to carry out a titration can be found on the 'Required Practical: Concentration of an Unknown Acid' page
Exam Tip
You will only be assessed on titrations involving the following strong acids:
hydrochloric acid, HCl
sulfuric acid. H2SO4
nitric acid, HNO3
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