Interpretation:
The freezing point of a solution have to be calculated.
Concept introduction:
For nonvolatile and nonelectrolyte solutes, the depression of the freezing point is directly proportional tomolalityof the solution.
Freezing point depression
Answer to Problem 99A
The freezing point of the solution is 2.74 °C.
Explanation of Solution
Write the expression for Molality of the solution.
(Note: Molecular weight of naphthalene = 128.08 gm/mol)
Write the expression for freezing point depression
Substitute the values in the above expression.
The freezing point of the solution:
Thus, the freezing point of the solution is
Chapter 14 Solutions
Glencoe Chemistry: Matter and Change, Student Edition
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