Question

describe the steps you would follow to separate a mixture of silt,potassium nitrate and fine coal dust?​

Answer 1

A mixture of silt, potassium nitrate and coal dust can be separated as follows

Dissolve the mixture in water. As potassium nitrate is soluble in water, it will dissolve in water, leaving behind silt and fine coal dust. Silt being heavier will settle at the bottom and coal dust being fine will rise to the surface and float on the surface of water.We can decant this water in a separate container. Thus we have two solutions now- one containing fine coal dust and the other containing silt (settled at the bottom of water). In both the solutions, we will now use filtration to separate coal dust and silt from their respective solutions. The filtrate obtained from both the solutions contains potassium nitrate dissolved in water. On evaporation we will get potassium nitrate.

Answer 2

Answer:

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