Assignment 3

24th Feb 2014 is the deadline for assignment 3.

Assignment 3 requires the following pieces of work:

1. report/poster on different separating techniques - how they're carried out and the scientific principles behind them
2. photos/diagrams demonstrating the four we carried out (chromatography, melting point, distillation and filtration)
3. procedure explaining how asprin is made and recrystallised
4. procedure explaining how to carry out the TLC and develop in potassium manganate (VII) solution
5. procedure explaining how to titrate asprin with iron (III) chloride
6. procedure explaining how to titrate asprin with sodium hydroxide
7. procedure explaining how to carry out a melting point of asprin
8. summary of your findings: what was the purity of the asprin, indicated by each method
9. a report describing the factors that influence purity (see assignment brief for more detail)
10. evaluation of three purity checking techniques

You have just under a month (but one whole week of holiday!)

Ms Elias