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Question:
 9. Coniine, a toxic substance isolated from poison hemlock, contains only carbon, hydrogen, and nitrogen. A famous hemlock poisoning occurred in 399 B.C.E. when the philosopher Socrates drank a liquid infused with hemlock to carry out his death sentence; Socrates had been convicted of impiety toward the gods and corruption of the youth. In fact, hemlock juice was often used to execute criminals in ancient Greece. Combustion analysis of a 5.024mg sample yields 13.90mg of CO 2 and 6.048 mg of H 2 O. What is the empirical formula of coniine?