Volumetric analysis: Accuracy and precision of a pipette
Posted on Feb 08 2013
by Tamsin Kelly, Dijana Townsend
This experiment is designed to introduce students to volumetric analysis, and in particular to develop the student’s skill of accurate pipetting. Many of the students in the unit have had no previous chemistry background, and therefore do not know how to use a pipette. The experiment is followed up with an experiment in the following week that moves onto using volumetric glassware (including volumetric flasks and burettes) to perform a titration. The experiment also enables the students to recognise the difference between accuracy and precision and undertake a titration based calculation (in preparation for the experimental based activities the following week).