HELP, 30 Points !!

1. Approximately what is the minimum temperature needed to dissolve 10 g of KNO₃ in 100 g H₂O? Round your answer to the nearest whole number.

2. Imagine that you have 100 g of water.

You start dissolving KNO₃ in the water and you find that after you’ve dissolved about 55 g of KNO₃, you can’t dissolve any more; it just sinks to the bottom.

Approximately what is the temperature of the water?Round your answer to the nearest whole number.