Titrations

Question 1

What are titrations used to find out?

Answer 1

Concentrations

Question 2

Method

Answer 2

1) Use a pipette, add some alkali to a conical flask, along with two or three drops of indicator
2) Fill the burette with acid at eye level
3) Using the burette, add the acid to the alkali a bit at a time giving the flask a regular swirl
4) The indicator changes colour when all the alkali has been neutralised e.g. phenolphthalein is pink in alkalis, but colourless in acids
5) Record the volume of acid used to neutralise the alkali