25
QuizMultiple Choice

Chemical Bonding and Reactions — Test

Question 25 • Chemistry

Which shows the correct relationship between the molecular formula and the empirical formula for cap c sub 2 cap h sub 10 cap n sub 2 ?

Answer
A
empirical formula is equal to 14 times molecular formula
B
empirical formula is equal to 2 times molecular formula
C
molecular formula is equal to 2 times empirical formula
D
molecular formula is equal to 62 point 1 times empirical formula

Explanation

For C₂H₁₀N₂, divide each subscript by the greatest common divisor, 2, to get the empirical formula CH₅N. The molecular formula C₂H₁₀N₂ is therefore 2 times the empirical formula, so the correct choice is “molecular formula is equal to 2 times empirical formula.”

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