Magnetism
What do you use to separate mangetic material from non-magnetic material?
A magnet
What does the method of chromatography separate?
Inks or dyes
What equipment do you need to filter something?
What from what state does evaporation occur?
Liquid
What property of a substance does distillation use to separate substances?
Boiling point
What types of substance are separated from one another using magnetism?
What liquid does the ink have to dissolve in to separate out?
A solvent (eg water)
What does filtration separate?
A insoluble solid from a liquid (eg. sand from water)
What does evaporation separate?
A soluble solid from a liquid
What does distillation separate?
Two liquids with different boiling points (eg ethanol and water, or salty water from pure water)
What can you add to a magnet to make it more magnetic?
Electricity
Describe the steps of chromatography.
1. Put the ink samples on the paper
2. Put the paper in the solvent
3. Wait for the paper to soak up the solvent and separate the ink.
Describe the steps of filtration.
1. Place filter paper in a funnel
2. Pour the mixture into the filter paper
3. Allow the liquid to flow through the paper and the solid to collect on top.
Copper sulfate crystals can be separated from copper sulfate solution using evaporation, true or false?
True
What are the state changes that occur in distillation (from start to finish)?
All metals are magnetic, true or false?
False. Metals such as aluminium, copper, gold and silver are not magnetic.
What is the 'mobile phase'? ie. the part that moves in chromatography?
The solvent
Filtration is a suitable method for separating large bits of solid from a liquid, true or false?
False - sieving is used to remove large solids.
What can you do to speed up the process of evaporation?
Increase the temperature
What is the name of the equipment that cools the vapour down?
Leibig condenser
If 'Iron' is the answer, what is the question?
Name a common metal that IS magnetic.
If 'chromatography paper' is the answer, what is the question?
If 'Use a vaccum pump to suck the water through quicker' is the answer, what is the question?
What can you do to increase the rate of filtration?
If 'make the solution more concentrated' is the answer, what is the question?
How can you make your copper sulfate crystals grow larger?
If, 'ethanol and water or salty water and pure water' is the answer, what is the question?
Give an example of two liquids that can be separated through distillation