When Are an Empirical Formula and a Molecular Formula the Same

question 117

Multiple Choice

When are an empirical formula and a molecular formula the same?

• A) Always
• B) When the mass of the empirical formula unit is equal to the molecular mass
• C) When the mass percentages of all of the elements in the two formulas are the same
• D) Never
• E) When the molecular mass is an integer multiple of formula unit mass

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Definitions:

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An enzyme that converts aldehyde to acetic acid.

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The chemical processes that occur within a living organism in order to maintain life, involving the conversion of food to energy, elimination of nitrogenous wastes, and the synthesis of necessary compounds.

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A defined age at which an individual is granted by law the rights and responsibilities of an adult.

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Young people in the transitional stage of physical and psychological development that generally occurs during the period from puberty to legal adulthood.