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When 46.1 g of alanine (C₂H,NO₂) are dissolved in 550. g of a certain mystery liquid X, the freezing point of the solution is 6.3 °C lower than the freezing point of pure X. On the other hand, when 46.1 g of iron(III) nitrate = (Fe (NO3)3) ² are dissolved in the same mass of X, the freezing point of the solution is 7.0 °C lower than the freezing point of pure X. Calculate the van't Hoff factor for iron (III) nitrate in X. Be sure your answer has a unit symbol, if necessary, and round your answer to 2 significant digits. 0

When 46.1 g of alanine (C₂H,NO₂) are dissolved in 550. g of a certain mystery liquid X, the freezing point of the solution is 6.3 °C lower than the freezing point of pure X. On the other hand, when 46.1 g of iron(III) nitrate = (Fe (NO3)3) ² are dissolved in the same mass of X, the freezing point of the solution is 7.0 °C lower than the freezing point of pure X. Calculate the van't Hoff factor for iron (III) nitrate in X. Be sure your answer has a unit symbol, if necessary, and round your answer to 2 significant digits. 0

Chemistry
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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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When 46.1 g of alanine (C3H,NO₂) are dissolved in 550. g of a certain mystery liquid X, the freezing point of the solution is 6.3 °C lower than the freezing point of pure X. On the other hand, when 46.1 g of iron (III) nitrate = (Fe(NO3)3): are dissolved in the same mass of X, the freezing point of the solution is 7.0 °C lower than the freezing point of pure X. Calculate the van't Hoff factor for iron (III) nitrate in X. Be sure your answer has a unit symbol, if necessary, and round your answer to 2 significant digits. i = 0 x10 X Ś I ㄷ C
Transcribed Image Text:When 46.1 g of alanine (C3H,NO₂) are dissolved in 550. g of a certain mystery liquid X, the freezing point of the solution is 6.3 °C lower than the freezing point of pure X. On the other hand, when 46.1 g of iron (III) nitrate = (Fe(NO3)3): are dissolved in the same mass of X, the freezing point of the solution is 7.0 °C lower than the freezing point of pure X. Calculate the van't Hoff factor for iron (III) nitrate in X. Be sure your answer has a unit symbol, if necessary, and round your answer to 2 significant digits. i = 0 x10 X Ś I ㄷ C
Expert Solution
Step 1: Given data

Given that, 

The mass of alanine is 46.1 g.

The molar mass of alanine is 89 g/mol.

The mass of the liquid X is 550 g.

The lowering of the freezing point of the liquid X is increment T subscript f = 6.3 oC.

The mass of Fe(NO3)3 is 46.1 g.

In this case, the lowering of the freezing point of the liquid X is increment T subscript f = 7.0 oC.

We have to calculate the Van't Hoff factor of Fe(NO3)3.


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