hemlock is a poisonous herb of the carrot family. The ancient Greeks used hemlock extras for state executions. Socrates was killed in this way. In a combustion experiement, 50.50 mg of hemlock is burned in excess oxygen. The products are 139.9 mg carbon dioxide and 60.91 mg water. In a second experiment, 75.62 mg of comound was found to contain 8.35 mg of nitrogen. The molar mass is less than 200 g/mol. Determine the molecular formular hemlock.