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this is a strange experiment in which when you mix two liquids its volume will increase.
you will require water and isopropyl alcohol. now fill a 25ml cylinder with 25ml ordinary
tap water. you see its up to the mark 25ml and then pour it in a transparent glass.once
again pour a similar amount of 25ml of isopropyl alcohol which is almost like spirit. take
25ml of alcohol, measure it exactly. you can see that alcohol is filled till 25ml mark.
and then pour this alcohol in glass containing 25ml of water. now stir the mixture of water
and alcohol well. and then when you pour it in a which has a capacity of 5oml. its a 50ml
measuring cylinder. pour the contents of the glass in this cylinder and you will be surprised
to find that the volume now decreases. it is no more 50ml but it reduces and just become
47ml. where has the missing volume gone. this is because water has an open structure like
ice and the tails of the alcohol molecules go and lodge in the water molecules.