Problem: Match the following aqueous solutions with the appropriate letter from the column on the right.1. 9.3E-2 m Al(CH3COO)3                          A.Highest boiling point2. 0.14 m (NH 4)2SO4                                  B.Second highest boiling point3. 0.23 m AgNO3                                         C.Third highest boiling point4. 0.40 m Sucrose (nonelectrolyte)             D.Lowest boiling point

FREE Expert Solution

We have to rank the given solutions based on their boiling points. We can do so by calculating the boiling points of these solutions.


When a nonvolatile solute is added to a volatile solvent the boiling point of the resulting solution is greater than the boiling point of the pure solvent. This is known as boiling point elevation.


We can calculate boiling point elevation using this formula:


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Where,

i = van ’t Hoff constant

Kb = ebullioscopic constant

m = molality of solution


ΔTb is the difference between the boiling point of solution (T2) and the boiling point of water (T1).


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Problem Details

Match the following aqueous solutions with the appropriate letter from the column on the right.

1. 9.3E-2 m Al(CH3COO)3                          A.Highest boiling point
2. 0.14 m (NH 4)2SO4                                  B.Second highest boiling point
3. 0.23 m AgNO3                                         C.Third highest boiling point
4. 0.40 m Sucrose (nonelectrolyte)             D.Lowest boiling point

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Boiling Point Elevation concept. If you need more Boiling Point Elevation practice, you can also practice Boiling Point Elevation practice problems.