Which of the Following Compounds Has the Same Percent Composition

question 11

Multiple Choice

Which of the following compounds has the same percent composition by mass as styrene, C₈H₈?

• A) cyclobutadiene, C₄H₄
• B) (  -ethyl naphthalene, C₁₂H₁₂)
• C) acetylene, C₂H₂
• D) benzene, C₆H₆
• E) all of these

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Definitions:

Outcome

The result of a single trial or realization of an experiment or random event.

P(A ∪ B)

The chance that either event A or event B, or both, will happen.

P(B | A)

The probability of event B occurring given that event A has already occurred, representing a conditional probability.

Finalists

The remaining candidates in a competition or selection process who have passed through preliminary rounds and are considered for the final award or decision.