When 32.7 g of alanine (C3H,NO,) are dissolved in 500. g of a certain mystery liquid X, the freezing point of the solution is 3.9 °C lower than the freezing point of pure X. On the other hand, when 32.7 g of potassium bromide are dissolved in the same mass of X, the freezing point of the solution is 5.5 °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.
When 32.7 g of alanine (C3H,NO,) are dissolved in 500. g of a certain mystery liquid X, the freezing point of the solution is 3.9 °C lower than the freezing point of pure X. On the other hand, when 32.7 g of potassium bromide are dissolved in the same mass of X, the freezing point of the solution is 5.5 °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.
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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Transcribed Image Text:When 32.7 g of alanine (C3H,NO,)
are dissolved in 500. g of a certain mystery liquid X, the freezing point of the solution is 3.9 °C lower than the freezing
point of pure X. On the other hand, when 32.7 g of potassium bromide are dissolved in the same mass of X, the freezing point of the solution is 5.5 °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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