An Aqueous Solution Contains 64

question 65

Multiple Choice

An aqueous solution contains 64.0 g of ethanol (C₂H₅OH) in 122.0 g of solution. What is the mole fraction of ethanol in the solution?

• A) 0.301
• B) 0.432
• C) 0.205
• D) 0.698
• E) 0.317

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Definitions:

Auditory Pathways

The auditory pathways are neural pathways in the brain that carry sensory information from the ear to the auditory cortex, enabling sound perception and processing.

CNS

The CNS, or Central Nervous System, consists of the brain and spinal cord, serving as the main processing center for the entire nervous system.

REM Sleep

A stage of sleep characterized by rapid eye movements, more dreaming, and bodily movement; important for learning and memory consolidation.

Pons

The pons is a part of the brain located in the brainstem, playing a crucial role in controlling breathing, communication between different parts of the brain, and sensations such as hearing, taste, and balance.