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Titrations

A titration is a method to determine the exact volume of one solution that will react with a given volume of another solution

 

The method to carry out a titration is:

  • Use a pipette to measure alkali solution into a conical flask

  • Add drops of indicator (Phenolphthalein or Methyl Orange)

  • Add acid into burette and note the starting volume

  • Add acid in burette into alkali in flask continuously swirling until indicator changes to a colour indicating the solution is neutral.

  • Note the final volume of acid in burette

  • Repeat the method until you have three concordant results (within 0.1 of each other)

 

We use the indicator phenolphthalein or methyl orange as there is an end-point so we can easily see the colour changes.