Question

You are provided with a solution of substance ‘X’. how will you test whether
it is saturated or unsaturated with respect to ‘X’ at a given temperature? What happens
when a hot saturated solution is allowed to cool?

Answer 1

Answer:

At any particular temperature, a solution that has dissolved as much solute as it is capable of dissolving is said to be a saturated solution.

If you add more amount of X in the solution then :

•  If it remain undissolved that means it is a saturated solution.

•  If it dissolves then it is an unsaturated solution.

Usually For solids Solubility is a function of temperature, so on decreasing the temperature solubility decreases therefore if a hot saturated solution of X is cooled then more and more amount of X (which is solute here) will precipitate out and settle down at the bottom.