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: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter12: Solutions
Section: Chapter Questions
Problem 12.83QE
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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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