EXERCISE 12.15-FREEZING POINTS OF SOLUTIONS OF ELECTROLYTESCalculate the freezing point of 525 g of water that contains 25.0 g of NaCl dissolved in äAssume that the van't Hoff factor (i) is 1.85.In solutions of electrolytesATf = Kf X m xi%3DAT,(measured)AT:(calculated)and AT:(calculated) is the freezing point depression predictedwhere i =%3Dfor a non-electrolyte solute. The van't Hoff factor i takes into account ionization ofthe solute and that the activity (or effective concentration) of the solute is differentfrom the labelled concentration.

The formula for freezing point depression is: Where, ΔTf denotes freezing point depression, i…

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EXERCISE 12.15-FREEZING POINTS OF SOLUTIONS OF ELECTROLYTES Calculate the freezing point of 525 g of water that contains 25.0 g of NaCl dissolved in Assume that the van't Hoff factor (i) is 1.85.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

EXERCISE 12.15-FREEZING POINTS OF SOLUTIONS OF ELECTROLYTES
Calculate the freezing point of 525 g of water that contains 25.0 g of NaCl dissolved in ä
Assume that the van't Hoff factor (i) is 1.85.
In solutions of electrolytes
ATf = Kf X m xi
%3D
AT,(measured)
AT:(calculated)
and AT:(calculated) is the freezing point depression predicted
where i =
%3D
for a non-electrolyte solute. The van't Hoff factor i takes into account ionization of
the solute and that the activity (or effective concentration) of the solute is different
from the labelled concentration.

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