Titration Curves (AQA A-Level Chemistry): Flashcards
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Titration curves show
Titration curves show
pH changes when acids and bases react during titration
Equivalence point definition
Equivalence point definition
When moles of acid equals moles of base
pH change at equivalence in strong acid-strong base
pH change at equivalence in strong acid-strong base
Steep pH rise
pH at equivalence in weak acid-strong base titration
pH at equivalence in weak acid-strong base titration
Greater than 7
Strong acid-weak base titration pH characteristic
Strong acid-weak base titration pH characteristic
pH rises but not sharply, final pH remains lower
Weak acid-weak base titration curve shape
Weak acid-weak base titration curve shape
Gentle slope throughout, no sharp jump
pH values used for two-point calibration
pH values used for two-point calibration
pH 4 and pH 9
Volume of acid used in titration
Volume of acid used in titration
25 cm
Increments for alkali addition
Increments for alkali addition
5 cm
Why weak acids/bases show gradual pH changes
Why weak acids/bases show gradual pH changes
Due to buffering effects