Another student is attempting to make a saturated solution of KCl. The student added 30 g of KCl to 100 g of water at 60°C. What more does the student need to do to create a saturated KCl solution at 60°C?

4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.