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Molecular and Emperical Formulas Molecular Formula (M.F.): A listing of the type and number of atoms (subscript) in a molecule; generally starting with C and H, and then the rest of the elements in alphabetical order Emperical Formula (E.F.): The numbers of atoms in a molecular formula reduced to the lowest possible whole numbers - reflects the ratio of atoms in a molecule; if odd numbers of atoms - the emperical formula and molecular formula wit be the same yes! . 4 From bond-line structures : . eat, N,; Circle and label each functional group in each of the molecules above. Cig Baa th Mr Draw in lone pairs on all appropriate atoms in the molecules above. Cq HyCiNo