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Calculation of Boiling-Point Elevation and Freezing-Point
Chapter 8, Problem 8PE(choose chapter or problem)
Calculate the freezing point of a solution containing of
and
of eucalyptol
, a fragrant substance found in the leaves of eucalyptus trees. (See Table 13.3.)
Questions & Answers
QUESTION:
Calculate the freezing point of a solution containing of
and
of eucalyptol
, a fragrant substance found in the leaves of eucalyptus trees. (See Table 13.3.)
ANSWER:
Step 1 of 3
The freezing point of a solution depends on the molality of the solution.
“The ratio of the number of moles of solute present in a given solution to that of the mass of solvent expressed in kilograms gives the molality of the solution.”
In the given case, eucalyptol is the solute and the solvent is 
The molality of this solution is calculated as follows:
Substitute the values in (I)
