The solubility of KI is 50 g in 100 g of H2O at 20°C. If 110 grams of KI are added to 200 grams of H2O.?
A. all of the KI will dissolve.
B. the solution will freeze.
C. the solution will start boiling.
D. a saturated solution will form.
E. the solution will be unsaturated.
Answer:
Because the solubility is 50 g in 100 g of water we get 100 g of KI in 200 g of water
If we add 110 g a saturated solution will form and will precipitate 10 g of KI
The answer is D
D
Actually, it will be totally saturated and there will be some solid KI left over
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