Question #fe5b8

1 Answer
May 10, 2017

Answer:

Nothing will precipitate.

Explanation:

I assume that you are being asked to interpret a solubility graph something like this.

http://www.mts.net/~alou/Chemistry%2011/Unit%204%20-%20Solutions%20Lessons

From the graph, it appears that the solubility of #"KNO"_3# is 40 g/100 mL of water.

Thus, if you start with a solution having 40 g of #"KNO"_3# in 100 mL of water at 100 °C and cool it to 25 °C, it will still hold 40 g of dissolved #"KNO"_3#.

The solution will be saturated, but no #"KNO"_3# will precipitate.