Shawn Harris
New member
The boiling point elevation can be predicted using the equation ?T = Kb x m x i , where ?T is the change in boiling point, i is the number of ions in the solution per mole of dissolved NaCl (i = 2), m is the molality of the solution, and Kb is the molal boiling point constant for water which is 0.51°C/m.
Calculate the predicted change in boiling point, in °C for your solution.
Data Table
mass NaCl 4.0019
mass water 99.8 g
boiling temp of pure water 99.66 °C
boiling temp of solution 100.35 °C
?T = Kb x m x i
=0.51x 4.0019 x 2
=4.081938
would this mean that the predicted change in boiling point is 4.08 °C? Or am I way off?
Calculate the predicted change in boiling point, in °C for your solution.
Data Table
mass NaCl 4.0019
mass water 99.8 g
boiling temp of pure water 99.66 °C
boiling temp of solution 100.35 °C
?T = Kb x m x i
=0.51x 4.0019 x 2
=4.081938
would this mean that the predicted change in boiling point is 4.08 °C? Or am I way off?