d on the following data, determine the molecular weight of the unknown solute.  Note the "initial freezing point" refers to the freezing point of the solvent as a pure substance while the "final freezing point" refers to the freezing point of the mixture.  Mass Solvent: 15.000 g FPD Constant of Solvent: 4.9  Mass Solute  2.350 g Initial Freezing Point: 85.3oC Final Freezing Point: 82.4oC Your answer should follow the format: a) ΔT b) Molality of the Solution c) mols of solute  d) Molecular weight of Solute

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
Chapter11: Properties Of Solutions
Section: Chapter Questions
Problem 129CP: You make 20.0 g of a sucrose (C12H22O11) and NaCl mixture and dissolve it in 1.00 kg water. The...
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Based on the following data, determine the molecular weight of the unknown solute.  Note the "initial freezing point" refers to the freezing point of the solvent as a pure substance while the "final freezing point" refers to the freezing point of the mixture. 

Mass Solvent:

15.000 g

FPD Constant of Solvent:

4.9 

Mass Solute 

2.350 g

Initial Freezing Point: 85.3oC

Final Freezing Point:

82.4oC

Your answer should follow the format:

  1. a) ΔT
  2. b) Molality of the Solution
  3. c) mols of solute 
  4. d) Molecular weight of Solute
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