INTERMOLECULAR FORCES OF ATTRACTION 1. Released on 2000, X-Trail is a 5-door crossover SUV manufactured by Nissan. For optimum regulation of engine temperature, it is recommended that its water tank is filled with 10.00 L of ethylene glycol, (CH2OH)2, solution. Commercially available coolant is formulated as 5.00% (v/v) water in ethylene glycol and freezes at -15.00 C under operating condition (1.02 atm). Assume that the total volume of the solution is equal to the sum of the volumes of solute and solvent. Physical Properties Ethylene Glycol Water density, g/mL freezing point at 1.00 atm (normal atmospheric condition), °C freezing point constant (Kr), °C-kg/mol molar mass, g/mol 1.1132 - 12.9 3.11 62.068 0.9601 0.00 1.86 18.016 a. Calculate the molality of the solution. b. Determine the freezing point of the pure solvent at the operating condition. c. Is the freezing point of the solvent at operating condition greater than, less than or equal to its freezing point normal atmospheric condition?
INTERMOLECULAR FORCES OF ATTRACTION 1. Released on 2000, X-Trail is a 5-door crossover SUV manufactured by Nissan. For optimum regulation of engine temperature, it is recommended that its water tank is filled with 10.00 L of ethylene glycol, (CH2OH)2, solution. Commercially available coolant is formulated as 5.00% (v/v) water in ethylene glycol and freezes at -15.00 C under operating condition (1.02 atm). Assume that the total volume of the solution is equal to the sum of the volumes of solute and solvent. Physical Properties Ethylene Glycol Water density, g/mL freezing point at 1.00 atm (normal atmospheric condition), °C freezing point constant (Kr), °C-kg/mol molar mass, g/mol 1.1132 - 12.9 3.11 62.068 0.9601 0.00 1.86 18.016 a. Calculate the molality of the solution. b. Determine the freezing point of the pure solvent at the operating condition. c. Is the freezing point of the solvent at operating condition greater than, less than or equal to its freezing point normal atmospheric condition?
Introduction to General, Organic and Biochemistry
11th Edition
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
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Transcribed Image Text:INTERMOLECULAR FORCES OF ATTRACTION
1. Released on 2000, X-Trail is a 5-door crossover SUV manufactured by Nissan. For optimum regulation of engine temperature,
it is recommended that its water tank is filled with 10.00 L of ethylene glycol, (CH2OH)2, solution. Commercially available
coolant is formulated as 5.00% (v/v) water in ethylene glycol and freezes at -15.00 C under operating condition (1.02 atm).
Assume that the total volume of the solution is equal to the sum of the volumes of solute and solvent.
Physical Properties
Ethylene Glycol
Water
density, g/mL
freezing point at 1.00 atm
(normal atmospheric
condition), °C
freezing point constant (Kr), °C-kg/mol
molar mass, g/mol
1.1132
- 12.9
3.11
62.068
0.9601
0.00
1.86
18.016
a. Calculate the molality of the solution.
b.
Determine the freezing point of the pure solvent at the operating condition.
C.
Is the freezing point of the solvent at operating condition greater than, less than or
equal to its freezing point normal atmospheric condition?
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