What Is the Molality of a Solution Prepared by Dissolving

question 50

Multiple Choice

What is the molality of a solution prepared by dissolving 86.9 g of diethyl ether, C₄H₁₀O, in 425 g of benzene, C₆H₆?

• A) 0.362 m
• B) 0.498 m
• C) 2.01 m
• D) 2.76 m
• E) None of these choices is correct.

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Definitions:

Longitudinal Study

A research design that involves repeated observations of the same variables (e.g., people) over short or long periods of time.

Giftedness

Refers to individuals, often children, who exhibit an exceptional level of ability or talent in one or more domains.

Mental Illness

Disorders that affect mood, thinking, and behavior, encompassing a wide range of conditions such as depression, anxiety disorders, schizophrenia, and bipolar disorder.

Terman and Oden

Researchers known for their longitudinal study on gifted children, calling it the Genetic Studies of Genius.