A 376 Mg Sample of a Nonelectrolyte Compound Isolated from Throat

question 117

Multiple Choice

A 376 mg sample of a nonelectrolyte compound isolated from throat lozenges was dissolved in water to produce 10.0 mL of a solution at 25C. The osmotic pressure of this solution was measured and found to be 4.89 atm. What is the molar mass of this compound?

• A)489 g/mol
• B)941 g/mol
• C)48.9 g/mol
• D)199 g/mol
• E)188 g/mol

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Definitions:

Arterial Plaque

Deposits of fatty substances, cholesterol, and other materials on the inner walls of arteries, which can lead to cardiovascular diseases.

Stress Hormones

Hormones like cortisol and adrenaline that are released in response to stress, affecting the body's metabolism, immune system, and other functions.

Permanent Predisposition

A long-lasting tendency or inclination to a particular condition or quality, often related to genetic or hereditary factors.

Diathesis-Stress Model

A psychological theory that explains behavior as both a result of biological and genetic factors ("diathesis") and life experiences ("stress").