Ethylene Glycol Is Used in Automobile Radiators as an Antifreeze

question 17

Multiple Choice

Ethylene glycol is used in automobile radiators as an antifreeze. What will the freezing point of an antifreeze solution be if 2.5 L of ethylene glycol are mixed together with 2.5 L of water? The following information may be helpful to you. Ethylene glycol has a very low vapor pressure and is essentially nonvolatile. molar mass of ethylene glycol  62.1 g/mol
Van 't Hoff factor  1
Density of ethylene glycol  1.11 g/mL
Density of water  1.00 g/mL
K_f for water  1.86C kg/mol

• A)(  39  C)
• B)(  16  C)
• C)(  1.6  C)
• D)(  33  C)
• E)(  24  C)

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Definitions:

Ethnomethodology

A sociological perspective focused on the ways people use everyday conversation and gestures to construct a shared social reality.

Phenomenology

A philosophical approach that focuses on the structures of experience and consciousness from the first-person perspective.

Talcott Parsons

A prominent American sociologist known for his theories on social systems, action theory, and for his role in developing structural functionalism.

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