Question

You have a saturated solution at 353K. State what would happen to its concentration when: (2)
a) Solvent is added to it.
b) Solute is added to it.
c) It is heated.
d) It is cooled.

Answer 1

A) the solution will become dilute and will also become unsaturated
B) the solute will not dissolve as the solution is saturated at that temperature
C) when heated it's solubility will increase and we'll be able to add more solute in the solution
D) the extra solute will separate out in the form of crystals

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Answer 2

Answer:

a)The concentration decreases

b)There is no change in concentration

c) when it is heated it's concentration increases

d) Crystals will be formed and it becomes supersaturated.

Explanation:

• First we need to know what is saturated solution

what is saturated solution?

• Saturated solution is the one that contains the maximum amount of solute at a given temperature.

There are three types of solutions

• unsaturated solution
• saturated solution
• supersaturated solution

a) when solvent is added to saturated solution,it's get diluted.Thereby the concentration of the solution get increased.

b) when solute is added to saturated solution there will be no change in concentration because as it is saturated solution it will be not able to dissolve any solute, instead it forms as solid at the bottom.

c) when the saturated solution gets heated, it provide more space for the solute to dissolve i.e, it's solubility increases.

As the solubility increases,we can able to dissolve more solute.Hence the concentration increases.

d) when the saturated solution gets cooled,it becomes supersaturated solution. On cooling the saturated solution its solubility decreases which results in the separation of some of the dissolved substance or solute in the solid crystal form.

Hence the crystals will be formed.

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