Question

What is the boiling point of an aqueous solution of a non electrolyte that has an osmotic pressure of 10.50atm at 25 degrees C? Kb of water is 0.52 degrees C/m. Assume the density of the solution is the same as that of pure water.

Answer 1

pi=osmotic pressure = Molarity*R*T
Plug in the numbers and calculate molarity.
Then use delta T = Kb*m
since the density of the solution is 1 kg/L, you may use m = M and solve for delta T.

Answer 2

What is the boiling point of a 4.00 m aqueous solution of a nonvolatile nonelectrolyte? (The boiling point elevation constant for water is 0.512° C/m).