Which of the following has same empirical and molecular formula ? *
a. NaCl
b. C₂H₂
c. N₂O₄
d. C₆H₆
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Answer:
Both have the same empirical formula, yet they are different compounds with different molecular formulas. Butene is C4H8, or four times the empirical formula; ethylene is C2H4, or twice the empirical formula.
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Empirical formula CH (92.2% C; 7.8% H)
Compound acetylene
Molecular formula C2H2
Boiling point, °C -84
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