Sublimation/Evaporation

Question 1

What is sublimation used to separate?

Answer 1

Used to separate a solid which sublimes from a mixture of solids.

Question 2

What is an example of sublimation?

Answer 2

A mixture of sodium chloride (table salt) and ammonium chloride can be separated this way as ammonium chloride can sublime ( ie, change from a solid to a gas).

Question 3

What is the meaning of sublimation? (not from the book btw)

Answer 3

Physically speaking, it means to transform solid to vapour or gas

Question 4

What does the cotton plug do?

Answer 4

Keep the vapour in (obviously)

Question 5

China dish

Answer 5

evaporating dish/ evaporating basin (damn def didnt know that)

Question 6

What is evaporation used to separate?

Answer 6

Used to separate and retain the solid solute from the liquid solvent in the solution

Question 7

Why is evaporation used?

Answer 7

It is used if the solute does not decompose or breakdown on heating and If a dry solute without any water is required.

Question 8

How are the components separated in evaporation?

Answer 8

The components are separated due to their different boiling points

Question 9

how must the boiling point be?

Answer 9

The boiling point of the solvent MUSTTTT be lower than that of the solute so that it is converted from a liquid to a gas leaving the solid solute behind

Question 10

Watch all the diagrams pleasee

Answer 10

please please please please please please please please please please please please please please please please okay ty love u