What Is the Weight Percent of a Caffeine Solution Made

question 38

Multiple Choice

What is the weight percent of a caffeine solution made by dissolving 6.35 g of caffeine,C₈H₁₀N₄O₂,in 75 g of benzene,C₆H₆?

• A) 0.078%
• B) 0.085%
• C) 7.8%
• D) 8.5%
• E) 0.80%

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Definitions:

Cerebellum

A part of the brain located at the back of the skull, important for coordinating movement and balance.

Reticular Formation

A complex network of nerve pathways in the brainstem that plays a key role in controlling arousal and attention.

Hippocampus

A part of the brain associated with memory formation, organization, and storage, as well as with spatial navigation.

Cerebellum

A part of the brain located at the back of the skull, crucial for motor control, coordination, precision, and accurate timing.