Question

Question #4b253

Answer 1

At 20 °C, you will get a saturated solution, and 10 g of `"KI"` will remain undissolved.

Explanation:

You know that the solubility of `"KI"` is 50 g/100 g of water.

∴ In 200 g water

`"Solubility" = 200 color(red)(cancel(color(black)("g H"_2"O"))) × "50 g KI"/(100 color(red)(cancel(color(black)("g H"_2"O")))) = "100 g KI"`

Since 100 g is the most that you can dissolve, the solution will be saturated.

The extra 10 g will remain undissolved on the bottom of the container.