During a freezing point depression experiment to determine the molar mass of an unknown solute (assume the van 't Hoff factor = 1.0000), the measurements in the below table are made. Complete the table mass of test tube + beaker + stir bar + solvent (g) 30.48 mass of test tube + beaker + stir bar + solvent + solute (g) 38.25 mass of test tube + beaker + stir bar (g) 10.06 mass of solvent (g) (A) mass of solute (g) (B) freezing point pure solvent (ºC) 45.31 freezing point solution (ºC) 41.51 If the freezing point depression constant of the pure solvent is 8.68 ºC·kg solvent/mol solute, calculate the molar mass of the solute g/mol
During a freezing point depression experiment to determine the molar mass of an unknown solute (assume the van 't Hoff factor = 1.0000), the measurements in the below table are made. Complete the table mass of test tube + beaker + stir bar + solvent (g) 30.48 mass of test tube + beaker + stir bar + solvent + solute (g) 38.25 mass of test tube + beaker + stir bar (g) 10.06 mass of solvent (g) (A) mass of solute (g) (B) freezing point pure solvent (ºC) 45.31 freezing point solution (ºC) 41.51 If the freezing point depression constant of the pure solvent is 8.68 ºC·kg solvent/mol solute, calculate the molar mass of the solute g/mol
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter10: Properties Of Solutions
Section: Chapter Questions
Problem 7RQ
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During a freezing point depression experiment to determine the molar mass of an unknown solute (assume the van 't Hoff factor = 1.0000), the measurements in the below table are made.
Complete the table
If the freezing point depression constant of the pure solvent is 8.68 ºC·kg solvent/mol solute, calculate the molar mass of the solute
g/mol
Complete the table
mass of test tube + beaker + stir bar + solvent (g) | 30.48 |
mass of test tube + beaker + stir bar + solvent + solute (g) | 38.25 |
mass of test tube + beaker + stir bar (g) | 10.06 |
mass of solvent (g) | (A) |
mass of solute (g) | (B) |
freezing point pure solvent (ºC) | 45.31 |
freezing point solution (ºC) | 41.51 |
If the freezing point depression constant of the pure solvent is 8.68 ºC·kg solvent/mol solute, calculate the molar mass of the solute
g/mol
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