The freezing point of ethanol, CH3CH2OH, is -117.30°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in ethanol is saccharin . A student dissolves 10.10 grams of saccharin, C7H5NO3S (183.2 g/mol), in 266.8 grams of ethanol. Use the table of boiling and freezing point constants to answer the questions below. Solvent Formula Kb (°C/m) Kf (°C/m) Water H2O 0.512 1.86 Ethanol CH3CH2OH 1.22 1.99 Chloroform CHCl3 3.67 X Benzene C6H6 2.53 5.12 Diethyl ether CH3CH2OCH2CH3 2.02 X The molality of the solution is ______m. The freezing point of the solution is _____°C. FILL IN THE BLANKS
The freezing point of ethanol, CH3CH2OH, is -117.30°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in ethanol is saccharin . A student dissolves 10.10 grams of saccharin, C7H5NO3S (183.2 g/mol), in 266.8 grams of ethanol. Use the table of boiling and freezing point constants to answer the questions below. Solvent Formula Kb (°C/m) Kf (°C/m) Water H2O 0.512 1.86 Ethanol CH3CH2OH 1.22 1.99 Chloroform CHCl3 3.67 X Benzene C6H6 2.53 5.12 Diethyl ether CH3CH2OCH2CH3 2.02 X The molality of the solution is ______m. The freezing point of the solution is _____°C. FILL IN THE BLANKS
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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The freezing point of ethanol, CH3CH2OH, is -117.30°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in ethanol is saccharin .
A student dissolves 10.10 grams of saccharin, C7H5NO3S (183.2 g/mol), in 266.8 grams of ethanol. Use the table of boiling and freezing point constants to answer the questions below.
The molality of the solution is ______m.
The freezing point of the solution is _____°C.
A student dissolves 10.10 grams of saccharin, C7H5NO3S (183.2 g/mol), in 266.8 grams of ethanol. Use the table of boiling and freezing point constants to answer the questions below.
| Solvent | Formula | Kb (°C/m) | Kf (°C/m) |
|---|---|---|---|
| Water | H2O | 0.512 | 1.86 |
| Ethanol | CH3CH2OH | 1.22 | 1.99 |
| Chloroform | CHCl3 | 3.67 | X |
| Benzene | C6H6 | 2.53 | 5.12 |
| Diethyl ether | CH3CH2OCH2CH3 | 2.02 | X |
The molality of the solution is ______m.
The freezing point of the solution is _____°C.
FILL IN THE BLANKS
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