Chemistry- Distillation (year 9)

Question 1

What is simple distillation used for?

Answer 1

for separating out a liquid from a solution

Question 2

What happens with the solution?

Answer 2

It gets heated and parts of the solution that has the lowest boiling points evaporates first

Question 3

What happens to the vapor?

Answer 3

It gets cooled and condenses (turns back into a liquid) and it is collected

Question 4

What happens to the rest of the solution?

Answer 4

is gets left behind in the flask

Question 5

What is the problem with simple distillation?

Answer 5

you can only use it to separate things with very different boiling points- if the temp goes higher than the boiling point of the substance with the higher boiling point, they will be mixed again

Question 6

What do you do if you have a mixture of liquids with similar boiling points?

Answer 6

You need another method to separate them like fractional distillation

Question 7

If you have a mixture of liquids then…

Answer 7

you can separate it using fractional distillation

Question 8

How do you do fractional distillation?

Answer 8

You put your mixture in a flask and stick a fractionating column on top and then you heat it

Question 9

What happens to the different liquids?

Answer 9

They will all have different boiling points

Question 10

What happens to the liquid with the lowest boiling point?

Answer 10

it will evaporate first