Question

1. A solution made by dissolving 200g of the same sugar in 100mL of water at 25°C. 2. An additional 100 g of the same sugar was added to the previous solution in 100 mL of water at 25 °C. 3. The saturated solution is heated to 100 °C. All the solutes are dissolved in water, 4. Cooling down the solution to 25 °C and no crystals were formed.​

Answer 1

Answer:

I hope this helps!

Answer 2

These activities are showing different kind of solutions i.e. unsaturated, saturated and supersaturated.

Explanation:

1. The solution is made by dissolving 200g of sugar in water at normal temperature and it can dissolve more sugar thus for now it is called unsaturated solution.
2. Now, 100g of more sugar is added to the pervious solution and it now cannot dissolve all sugar at normal temperature thus it has reached it saturation and is called saturated solution(some part of solute is remained undissolved).
3. Further, the solution is heated to 100°C which ensures the left over solute to dissolve and thus making the solution supersaturated solution.
4. If we cool down the supersaturated solution slowly to normal temperature no crystal is formed unless disturbed.