1. Distillation

2. Today you will learn About distillation Distillation apparatus
Useful terminology referring to separation methods 2

3. „Never delay kissing a pretty girl or opening a bottle of whiskey. “ E
„Never delay kissing a pretty girl or opening a bottle of whiskey.“ E.Hemingway
What do you know about the production of whisky?
What is whisky? How is it made? Can you make it at home?
What separation techniques do you know? 3

4. Label the pictures with the parts of a distillation apparatus.
Thermometer
Tripod stand
Condenser
Erlenmeyer flask
Boiling point
Distillation flask 4

5. Distillation is a process that can be used to separate a pure liquid from a mixture of liquids. It works when the liquids have different boiling points.
Distillation is commonly used to separate ethanol - the alcohol in alcoholic drinks - from water. Another use is crude oil processing.

6. Distillation process to separate ethanol from water
Step 1 - water and ethanol solution are heated 5

7. Step 2 - the ethanol evaporates first, cools, then condenses

8. Step 3 - the water left evaporates, cools, then condenses

9. Put the events in the correct order
condensing
cooling
evaporating
heating

10. Fill in the gaps with the correct words
The mixture is in a flask. Ethanol has a lower than water so it evaporates first. The ethanol is then cooled and condensed inside the to form a pure liquid. The shows the boiling point of the pure ethanol When all the ethanol has evaporated from the solution, the temperature rises and the water
boiling
point
evaporates
heated
liquid
vapour
condenser
thermometer

11. Video links

12. Task Distillation is one of the most common separation methods.
Choose one from this list of separation techniques and describe it in detail. or
2) Compare the following methods, their equipment, uses, properties of mixtures,...
Separating funnel
Magnetism
Paper Chromatography
Filtration 6

13. Useful links: www.ehow.com www.wikihow.com 7

14. You may need the following terminology
Funnel
Mixture
Filtrate
Residue
Filter paper
Solvent
Absorb
Iron filings
Attract
Surface
(Im)miscible liquids
Beaker
Density
Settle
Dissolve
Magnetic properties 8

15. Useful language This method is best for ... This is called ...
For example, ...
It works like this
Turn into
It causes x to turn into y
The process continues until
Similar to...
It is best for
To be applied to ...
Unlike
One ot the drawbacks is ...
This has the (dis) advantage of ...
This has the effect of ...
If we ..., then it will ...
In order to do this, we need to ...
Firstly, secondly, thirdly,
Then, after that, finally ... 9

16. How will your work be assesed?
Clarity
Resourcefulness
Originality
Effective use of language 10

17. zita.valentova@mssch.cz zuzana.juskova@mssch.cz