What Is the Weight Percent of a Caffeine Solution Made

question 66

Multiple Choice

What is the weight percent of a caffeine solution made by dissolving 4.35 g of caffeine,C₈H₁₀N₄O₂,in 75 g of benzene,C₆H₆?

• A)0.055%
• B)0.058%
• C)5.5%
• D)5.8%

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Definitions:

Jim Crow

Laws or practices that enforced racial segregation and discrimination against African Americans in the southern United States, primarily from the late 19th century through the mid-20th century.

Fourteenth Amendment

An amendment to the U.S. Constitution, ratified in 1868, that grants citizenship to all persons born or naturalized in the United States, including former slaves, and provides all citizens with “equal protection under the laws.”

Dwight Eisenhower

The 34th President of the United States, a five-star general during World War II, and a key figure in American mid-20th century politics.

Little Rock

Refers to the Little Rock Nine incident in 1957, where African American students were integrated into Little Rock Central High School amid racial tensions.