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i. Pour water into the beaker till it is half full
ii. Dissolve some potassium permanganate crystals until the solution is purple
iii. Transfer half the solution into another beaker and fill it with water
iv. Continue the process with other beakers, comparing the colour of the solution through each dilution.
Observation
The colour of the solution fades away through each dilution until the solution appears colourless.
This shows that the particles of potassium permanganate are spread out evenly in the water. Each dilution
spreads them out further as the water molecules increase in number. Hence the purple colour fades away with
each dilution until it becomes colourless.
Conclusion
Potassium permanganate is made up of tiny particles.
Moraa orina answered the question on April 6, 2018 at 17:09
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