What Is the Boiling Point of a Solution of Ethanol

question 160

Multiple Choice

What is the boiling point of a solution of ethanol that contains 4.9 grams of vanillin in 47.0 grams of ethanol?
Molar Mass(vanillin) = 152.14 g/mol; K_b(ethanol) = 1.22 ° C/ m ; bp(ethanol) = 78.5 ° C.

• A) T_{b, solution} = 76.7 ° C
• B) T_{b, solution} = 77.7 ° C
• C) T_{b, solution} = 78.6 ° C
• D) T_{b, solution} = 79.3 ° C
• E) T_{b, solution} = 79.9 ° C

Understand when and why correlational studies are used despite their inability to infer causation.

Recognize ethical considerations and challenges in research on abnormal psychology.

Understand the key concepts and types of corporate strategies including diversification, differentiation, and adaptation models.

Gain knowledge on human resource management practices and their alignment with corporate strategy.