What Is the Weight Percent of a Caffeine Solution Made

question 47

Multiple Choice

What is the weight percent of a caffeine solution made by dissolving 8.35 g of caffeine,C₈H₁₀N₄O₂,in 75 g of benzene,C₆H₆?

• A)0.010%
• B)0.011%
• C)10%
• D)11%

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Definitions:

Energy Availability

The amount of energy accessible to the body for physiological functions after accounting for energy expended during physical activities.

Bone Health

The strength and density of bones, important for preventing fractures and diseases such as osteoporosis.

Resting Metabolic Rate

The amount of energy expended while at rest in a neutrally temperate environment, in the post-absorptive state.

Essential Body Processes

Fundamental physiological activities necessary for life, including respiration, digestion, and homeostasis.