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3. The empirical formula of styrene is CH； its molar mass is 78.1. What is the molecular formula of styrene?
(A) C6H6
(B) C8H8
(C) 66629843717af.jpg
(D) 6662984e5a0a1.jpg
(E) 6662985546a9d.jpg



3. The empirical formula of styrene is C..-阿摩線上測驗