Question

Data Table
mass NaCl 4.0865 g
mass water 99.8 g
boiling temp of pure water 99.49°C
boiling temp of solution 100.24°C

7. The boiling point elevation can be predicted using the equation?T = Kb * m * i , where ?T is the change in boiling point, i is thenumber of ions in the solution per mole of dissolved NaCl (i = 2),m is the molality of the solution, and Kb is the molal boilingpoint constant for water which is 0.51°C/m.

Calculate the predicted change in boiling point, in °C for yoursolution.


8. The change in boiling point must be added to the boiling pointof pure water in your experiment in order to compare the predictedboiling point with the actual boiling point.

What is the calculated boiling point of the solution? Compare thiswith the actual boiling point.