An Aqueous Solution Containing 12

question 39

Multiple Choice

An aqueous solution containing 12.0% MgCl₂ by mass has a density of 1.105 g/mL. What is the mol fraction of water in this solution?

• A) 0.975
• B) 0.880
• C) 0.868
• D) 0.133
• E) 0.952

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Definitions:

Altruism

The principle or practice of concern for the welfare of others, often at a cost to oneself.

Competitiveness

A personal trait characterized by a desire to win or be more successful than others, often driving individuals to pursue goals with vigor and persistence.

Hostility

Hostility is an emotion characterized by antagonism or aggression towards others, often resulting from frustration or perceived threats.

Type A

A personality characterized by a constant sense of urgency, competitiveness, and an excessive preoccupation with work and time management.