A Mixture of Salt and Ice Is Used to Chill

question 44

Multiple Choice

A mixture of salt and ice is used to chill the contents of old-fashioned, hand-operated ice cream makers. What is the melting point of a mixture of 1.00 lb of sodium chloride and 16.00 lb of ice if exactly half the ice melts? Assume ideal behavior and that all the sodium chloride dissolves in the melted ice water. K_f(water) = 1.86°C/m

• A) -8°C
• B) -11°C
• C) -12°C
• D) -21°C
• E) -15°C

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Definitions:

Nonemployee Agent

An individual or entity that acts on behalf of another person or entity in a specific role or capacity but is not considered an employee for legal and tax purposes.

Fiduciary Duty

An obligation to act in the best interest of another party. For instance, a corporation's board member has a fiduciary duty to the shareholders.

Bribe

Offering, giving, receiving, or soliciting something of value for the purpose of influencing the actions of an official or other person in charge of a public or legal duty.

Best Interests

A standard considering the wellbeing and benefits of an individual, especially in legal and financial decisions affecting that person.