YEAR 10 WORKSHEET
1. Name the method which is most suitable for separating the following:
a) oxygen from liquid air =
b) red blood cells from plasma =
c) petrol and kerosene from crude oil =
d) coffee grains from coffee solution =
e) pieces of steel from engine oil =
f) ethanol and water =
2. A list of techniques used to separate mixtures is given below.
fractional distillation
diffusion
simple distillation
crystallization
From the list choose the most suitable technique to separate the following:
a) water from aqueous copper(II) sulphate
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b)helium from a mixture of helium and argon
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c) copper(II) sulphate from aqueous copper(II) sulphate
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d) ethanol from aqueous ethanol
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e) barium sulphate from a mixture of water and barium sulphate
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filtration
3. Label the following diagram then answer the questions that follow.
a) Describe how you would use the above apparatus to separate a mixture of ink and water.
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b) Filtration can be used to separate an insoluble solid in a solvent. Describe this process and
draw a diagram to support this using the example of sand and water.
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