In Chemistry lab, you and your lab partner discover that a 0.5 molal solution of sucrose is found to decrease the freezing point of water by about 1oC, while a 0.5 molal solution of potassium iodide depresses the freezing point by about 2 oC. Your lab partner explains this results based on the different molar masses of the two compounds,

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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In Chemistry lab, you and your lab partner discover that a 0.5 molal solution of sucrose is found to decrease the freezing point of water by about 1oC, while a 0.5 molal solution of potassium iodide depresses the freezing point by about 2 oC.

Your lab partner explains this results based on the different molar masses of the two compounds, stating the molar mass of potassium iodide is approximately half that of sucrose.

Do you agree? 

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