What Is the Mole Fraction of Ethanol in a Solution

question 7

Multiple Choice

What is the mole fraction of ethanol in a solution made by dissolving 29.2 g of ethanol,C₂H₅OH,in 53.6 g of water?

• A)0.176
• B)0.213
• C)0.352
• D)0.545

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Definitions:

Brain Development

The process of growth and maturation of the brain, which includes changes in structure, function, and complexity over time.

External Stimuli

External forces or conditions that influence behavior, perception, or physiological responses.

Formal Operations

The final stage in Piaget's theory of cognitive development, marked by the ability to think abstractly and reason hypothetically.

Abstract Thinking

The cognitive ability to understand concepts that are not grounded in physical reality, and to use general principles to solve problems and generate new ideas.