When 73.6 g of glycine C2H5NO2 are dissolved in 1250. g of a certain mystery liquid X, the freezing point of the solution is 2.8°C lower than the freezing point of pure X. On the other hand, when 73.6 g of potassium bromide are dissolved in the same mass of X, the freezing point of the solution is 2.6°C lower than the freezing point of pure X. Calculate the van't Hoff factor for potassium bromide in X.
When 73.6 g of glycine C2H5NO2 are dissolved in 1250. g of a certain mystery liquid X, the freezing point of the solution is 2.8°C lower than the freezing point of pure X. On the other hand, when 73.6 g of potassium bromide are dissolved in the same mass of X, the freezing point of the solution is 2.6°C lower than the freezing point of pure X. Calculate the van't Hoff factor for potassium bromide in X.
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter15: Principles Of Chemical Reactivity: Equilibria
Section15.6: Disturbing A Chemical Equilibrium
Problem 2.1ACP: Freezing point depression is one means of determining the molar mass of a compound. The freezing...
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When 73.6 g of glycine C2H5NO2 are dissolved in 1250. g of a certain mystery liquid X, the freezing point of the solution is 2.8°C lower than the freezing point of pure X. On the other hand, when 73.6 g of potassium bromide are dissolved in the same mass of X, the freezing point of the solution is 2.6°C lower than the freezing point of pure X. Calculate the van't Hoff factor for potassium bromide in X. Be sure your answer has a unit symbol, if necessary, and round your answer to 2 significant digits.
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