Chemistry

A titration is carried out using a number of steps:

1. If the sample is a solid, it is weighed using an accurate balance, and thendissolved to make up a known volume of solution (usually 100cm³).

2. A pipette is used to measure accurately a volume of this solution - for example, 10cm³. A safety pipette filler is used to draw solution into the pipette. This is emptied into a conical flask.

3. A few drops of an indicator may be added to the conical flask. This will show a change of colour when the titration is complete.

4. A second chemical is placed in a burette. This other solution is of a chemical that will react with the synthesised chemical sample in the conical flask. Often the solution in the burette is an acid or alkali, and it must be of a precise, known concentration.

5. The solution from the burette is run into the conical…