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TITRATION

TITRATION. To determine the concentration of a solution of sodium hydroxide by reacting it with hydrochloric acid of known concentration. Hydrochloric acid 0.1 mol/dm 3. Sodium hydroxide solution – concentration ?. Measure out 25 cm 3 of hydrochloric acid using a PIPETTE. PIPETTE.

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TITRATION

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  1. TITRATION To determine the concentration of a solution of sodium hydroxide by reacting it with hydrochloric acid of known concentration Hydrochloric acid 0.1 mol/dm3 Sodium hydroxide solution – concentration ?

  2. Measure out 25 cm3 of hydrochloric acid using a PIPETTE PIPETTE Transfer to a conical flask

  3. Take initial reading on burette. Fill burette with sodium hydroxide solution BURETTE

  4. Add a few drops of indicator e.g. phenolphthalein

  5. Add sodium hydroxide until indicator changes colour Take final reading on burette Permanent pale pink colour

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