Separation of mixtures
3 marks · EasyThe diagram shows the apparatus used for simple distillation.
Name the liquid collected in the beaker.
Give the name of the process shown.
Explain why the salty water is heated in this process.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
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(a) Pure water · must show pure water
(b) Simple distillation · must show simple distillation
(c) To evaporate the water so it can then be condensed and separated from the salt. · must show water evaporates, separates from salt
Common mistakes: States only evaporation; Gives wrong name for the process
Show mark scheme and worked solution
Marking points
B1 (a) · 1 mark · Names pure water as the liquid collected.
B1 (b) · 1 mark · Gives simple distillation as the process.
B1 (c) · 1 mark · Explains that heating evaporates water, allowing separation from salt.
Worked solution
a) The beaker collects pure water.
b) The process is simple distillation.
c) Heating the salty water causes the water to evaporate, which is then condensed and collected, separating it from the salt.