We much prefer one question per post.
a) and b). Both require a knowledge of the solubility. I suggest you look on the web for that information. I don't have it in any of my references and I don't keep that kind of info in my head.
c). The solubility of most gases decreases with increasing T.
If you add 50 g of sylvite in 100 ml of water at 60 ° C, the resulting solution will she unsaturated, saturated or supersaturated?
You prepare a solution and you add 50 g of potassium nitrate to 100 ml of water at 50 ° C. What type of solution are you prepared?
Ammonia is a gas. Describe what happens to the solubility of ammonia when the temperature rises from 20 ° C to 80 ° C.
What two substances which have the same solubility at 28 ° C?
3 answers
d needs clarification.
Saturated