Some inks are dyes dissolved in water. The apparatus below illustrates how water may be seprated from these inks.
(i) On the diagram, label the ink and the pure water.
(ii) On the diagram, draw a thermometer to show where it should be placed so as to collect pure water in the experimental set-up.
(iii) Name this method of separation.
(iv) What is the purpose of the beaker of cold water?
(i and ii)
(iii) Simple distillation
(iv) To condense the water vapour.