Separation Techniques

HideShow resource information
  • Created by: joshd
  • Created on: 01-04-14 17:33
What will some liquids do and some won't?
Mix with each other.
1 of 10
Give an example of mixing liquids and a miscible outcome.
For example, when you put a splash of milk in your tea the milk mixes with the tea - it doesn't float on top no matter how much you put in. It's a miscible mixture of liquids.
2 of 10
Give an example of mixing liquids and a immiscible outcome.
If you tried to put oil in your tea it wouldn't mix properly and the oil would float on the top - the liquids are immiscible.
3 of 10
Describe how to separate immiscible liquids using a separating funnel. (1)
1)If two immiscible liquids are shaken together, when they are allowed to stand they will separate out into layers. 2) The denser liquid sinks to the bottom and the less dense one forms a layer on the top.
4 of 10
Describe how to separate immiscible liquids using a separating funnel. (2)
3)These layers can be separated using a separating funnel with a tap. The tap can be opened to drain off the denser liquid into a beaker.4)For example a mixture of oil and water can be separated in this way.
5 of 10
How can miscible liquids be separated.
Mixtures of miscible liquids can be separated by fractional distillation.
6 of 10
What must the different liquids have for fractional distillation to occur?
They must have different boiling points. If the mixture is heated, the different liquids will condense at different temperatures and can be collected separately.
7 of 10
Give an example of what can be done with fractional distillation.
It can give a variety of products (e.g, nitrogen and oxygen) for use in industry.
8 of 10
Describe the method of fractional distillation (1)
1)Air is filtered to remove dust.2)It's then cooled to around -200dC and become a miscible mixture of liquids.3)During cooling water vapour condenses and is removed.4)Carbon dioxide freezes and is removed.
9 of 10
Describe the method of fractional distillation (2)
5)The liquefied air then enters the fractionating column and is heated slowly.6)The remaining gases are separated by fractional distillation. Oxygen and argon come out together so another column is used to separate them.
10 of 10

Other cards in this set

Card 2

Front

Give an example of mixing liquids and a miscible outcome.

Back

For example, when you put a splash of milk in your tea the milk mixes with the tea - it doesn't float on top no matter how much you put in. It's a miscible mixture of liquids.

Card 3

Front

Give an example of mixing liquids and a immiscible outcome.

Back

Preview of the front of card 3

Card 4

Front

Describe how to separate immiscible liquids using a separating funnel. (1)

Back

Preview of the front of card 4

Card 5

Front

Describe how to separate immiscible liquids using a separating funnel. (2)

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Separation Techniques resources »