Ethylene Glycol Is Used in Automobile Radiators as an Antifreeze $\circ$

question 43

Multiple Choice

Ethylene glycol is used in automobile radiators as an antifreeze.Use the following information to determine the freezing point of an antifreeze solution made by mixing 2.5 L of ethylene glycol with 2.5 L of water.Ethylene glycol is essentially nonvolatile and it does not dissociate in water. molar mass of ethylene glycol = 62.1 g/mol
Density of ethylene glycol = 1.11 g/mL
Density of water = 1.00 g/mL
K_f for water = 1.86 ^$\circ$ C kg/mol

• A)-39 \(\circ\) C
• B)-16 \(\circ\) C
• C)-1.6 \(\circ\) C
• D)-33 \(\circ\) C
• E)-24 \(\circ\) C

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Definitions:

Carrier

An individual who possesses one copy of a recessive gene for a genetic trait or disease and can pass it to their offspring without showing symptoms themselves.

Dominant

Exhibiting influence or control over others; in genetics, it refers to an allele that expresses its phenotypic effect in the presence of another allele.

Recessive

A term used in genetics to describe a trait or gene that is expressed only when two copies of the gene are present, as opposed to a dominant trait which is expressed when only one copy is present.

Klinefelter's Syndrome

A genetic condition affecting males, characterized by an extra X chromosome, leading to symptoms like reduced fertility and physical development.