Task 1
1. Prepare a sample of ethyl ethanoate and test its
purity, demonstrating skilful application of the
techniques you use
(i.e. reflux and distillation using QuickfitTM apparatus,
addition of chemicals to purify the ethyl ethanoate
and testing its purity by measuring its boiling point
and infrared spectrum and comparing with
reference information).
2. Write a report detailing your production and testing
of ethyl ethanoate in the laboratory. The report must:
3. Explain the scientific principles behind your practical
work techniques
4. Give detailed conclusions from your practical work

5. Identify factors that affect the yield and purity of
ethyl ethanoate in your laboratory preparation and
analyse how significant these factors are
6. Research and describe the industrial manufacture
and testing of ethyl ethanoate, including raw
materials, equipment and scale of production.
7. Compare the laboratory and industrial manufacture
and testing of ethyl ethanoate, explaining principles,
similarities and differences in the equipment and
techniques used.
8. Analyse how relevant the factors you have identified
as affecting yield and purity are in the industrial
manufacture of ethyl ethanoate.
9. Analyse whether boiling point measurement and
infrared spectroscopy are effective ways to assesS
purity of a liquid, and draw a conclusion on whether
other methods used industrially, such as
chromatography, are more reliable.