Dave performs an experiment to determine the van 't Hoff factor for an aqueous solution of CaCl2. He adds 0.736 g of CaCl2 to the sample test tube along with 20.0 mL of distilled water. He then freezes the solution and determines the freezing point depression from the difference in melting point of the pure solvent and the solution. He obtains 1.8 °C as the freezing point depression, ∆T, for his first trial and 1.7 °C in his second trial. What is the calculated van 't Hoff factor using Dave's experimental data? Molar mass of CaCl2 is 110.98 g/mol Density of H2O is 0.9982 g/mL Kf of water is 1.86 °C/m
Dave performs an experiment to determine the van 't Hoff factor for an aqueous solution of CaCl2. He adds 0.736 g of CaCl2 to the sample test tube along with 20.0 mL of distilled water. He then freezes the solution and determines the freezing point depression from the difference in melting point of the pure solvent and the solution. He obtains 1.8 °C as the freezing point depression, ∆T, for his first trial and 1.7 °C in his second trial. What is the calculated van 't Hoff factor using Dave's experimental data? Molar mass of CaCl2 is 110.98 g/mol Density of H2O is 0.9982 g/mL Kf of water is 1.86 °C/m
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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Dave performs an experiment to determine the van 't Hoff factor for an aqueous solution of CaCl2. He adds 0.736 g of CaCl2 to the sample test tube along with 20.0 mL of distilled water. He then freezes the solution and determines the freezing point depression from the difference in melting point of the pure solvent and the solution. He obtains 1.8 °C as the freezing point depression, ∆T, for his first trial and 1.7 °C in his second trial.
What is the calculated van 't Hoff factor using Dave's experimental data?
Molar mass of CaCl2 is 110.98 g/mol
Density of H2O is 0.9982 g/mL
Kf of water is 1.86 °C/m
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