Question

write a activity on size of particles.

no spam. (easy & simple activity).​

Answer 1

Answer:

1. 1)take 2-3 crystals of potassium permanganate and dissolve them in100 ml of water. 2) Take out approximately 10 ml of this solution and put it into 90 ml of clear water.

3)Take out 10 ml of this solution and put it into another 90 ml of clear water.4)keep diluting the solution like this 5 to 8 times. 5) is the water still coloured. Explantation this experiment shows that just a few crystals of potassium permanganate can colour a large volume of water so we can conclude that there must be millions of tiny particles in just one crystal of potassium permanganate which keep on dividing themselves into smaller and smaller particles