Titration Colour Changes

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Presentation transcript:

Titration Colour Changes

Acid/ Base Titrations Hydrochloric Acid v Sodium carbonate HCl Indicator:- Methyl Orange Red Na2CO3

Acid/ Base Titrations Ethanoic Acid v Sodium Hydroxide CH3COOH Indicator:- Phenolphthalein Colourless NaOH

Redox Titrations Potassium Permanganate v Ammonium Iron (II) Sulphate KMnO4 Indicator:- Potassium Permanganate Persisting Pale Pink (NH4)2SO4.Fe(ll)SO4

Hard Water (Ca++) v Edta Edta Titration Hard Water (Ca++) v Edta edta Indicator:- Eriochrome Black T Red Blue

Redox Titrations Iodine v Thiosulphate Indicator:-Starch End Point Add Starch I2 Soln. Brown Colourless I2 Soln. Pale Yellow Blue Black

Summary Hydrochloric Acid v Sodium carbonate Indicator Methyl Orange orange to red

Ethanoic Acid v Sodium Hydroxide Indicator Phenolphthalein Pink to Colourless

Potassium Permanganate v Ammonium Iron (II) Sulphate Indicator KMnO4 is it’s own Indicator Colourless to Permanent Pink Tinge (Persistant Pink)

Hard Water (Ca++) v Edta Indicator Eriochrome Black T Red to Blue

Iodine v Thiosulphate Indicator Starch indicator Brown to Pale Yellow to Blue/black to Colourless