1 gram mole of an alcohol (molecular weight 74) containing 48g carbon, 10g hydrogen, and 16g oxygen possesses the molecular formula__________________?
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Answer: A. C4H9OH
Explanation
An alcohol with molecular weight seventy four containing specified masses of carbon, hydrogen, and oxygen corresponds to butanol. Calculating molar masses for the given atomic weights confirms the molecular formula is four carbons and ten hydrogens with hydroxyl. The resulting chemical structure matches the formula C4H9OH for normal butyl alcohol. Alcohols are organic compounds characterized by the presence of at least one hydroxyl functional group attached to carbon. Molecular weight is calculated by summing the atomic weights of all constituent atoms in a chemical formula. Elemental analysis provides mass percentages that determine the empirical and molecular formulas of unknown compounds.
Chemical synthesis industries produce various alcohols for use as solvents, fuels, and chemical intermediates. Organic chemists use molecular formula calculations to identify unknown reaction products in laboratory research. Understanding alcohol chemistry is essential for developing renewable biofuels and petroleum alternative products. Option B suggests an impossible hydrogen count that violates standard organic valence bonding rules. Option C uses a convoluted structural notation that does not represent standard butyl alcohol formulas. Option D lists an incorrect hydrogen stoichiometry incompatible with a molecular weight of seventy four.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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