student dissolves 10.82 grams of estrogen, C18H24O2 (272.4 g/mol), in 158.1 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 Benzene C6H6 2.53 5.12 Diethyl ether CH3CH2OCH2CH3 2.02 The molality of the solution is __________ m. The boiling point of the solution is___________ °
student dissolves 10.82 grams of estrogen, C18H24O2 (272.4 g/mol), in 158.1 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 Benzene C6H6 2.53 5.12 Diethyl ether CH3CH2OCH2CH3 2.02 The molality of the solution is __________ m. The boiling point of the solution is___________ °
Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter14: Mixtures And Solutions
Section: Chapter Questions
Problem 120A
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The boiling point of ethanol, CH3CH2OH, is 78.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in ethanol is estrogen (estradiol).
A student dissolves 10.82 grams of estrogen, C18H24O2 (272.4 g/mol), in 158.1 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 | |
| Benzene | C6H6 | 2.53 | 5.12 |
| Diethyl ether | CH3CH2OCH2CH3 | 2.02 |
The molality of the solution is __________ m.
The boiling point of the solution is___________ °C.
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