More Seperating Techniques Flashcards

1
Q

What does filtration do

A

It is used to separate a insoluble solid from a liquid.

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2
Q

What is the method of filtration

A

Put a piece of filter paper in a funnel , put that on top of a conical flask . Pour the mixture , over this we can separate liquid and solid

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3
Q

What does evaporation do

A

Used to separate a soluble solid from a solution .

Only able to do it if the solid doesn’t decompose with heat

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4
Q

What is the method of evaporation

A

Put the solution in an evaporating dish and slowly heat it up with a Bunsen burner . The solvent will then evaporate and the solution will get more concentrated until a solid forms

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5
Q

What does crystallisation do

A

Used to separate a soluble solid from a solution

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6
Q

What is the method of crystallisation

A

Place the solution in an evaporating dish and slowly heat it until some of the solvent has evaporated and crystals begin to form. When this happens , remove the dish from the heat and leave to cook

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7
Q

True or false

Crystallisation is faster than evaporation

A

FALSE

It takes much longer

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