Question

1. An unknown compound containing C, H, N, and O elements in different multiples of the empirical formula. Using the data contained in the table, find me a) the empirical formula, and b) the molecular formula of a family member with a molar mass of 390 g/mol. 

Element Percent Composition (%) Molar Mass (g/mol)

C 36.9 12.01

H 6.2 1

N 32.3 14

O ? 16

Answer 1

 the empirical formula - C₄H₈N₃O₂

 the molecular formula - C₁₂H₂₄N₉O₆