Published On Jun 28, 2013
This activity aims to convey an idea of the scale at which matter exists, of how tiny atoms and molecules are. Even after diluting a coloured liquid like a potassium permanganate solution over and over again we that there is still a hint of colour even in the most dilute solution. This tells us that there must be a large number of very small particles in the small amount of potassium permanganate that we dissolved to make the first solution.
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