6. The empirical formula for trichloroisocyanuric acid, the active ingredient in many household bleaches, is OCNCI. The molar mass of this compound is 232.41 g/mol. What is the molecular formula of trichloroisocyanuric acid?

7. Determine the molecular formula of a compound with an empirical formula of NH, and a formula mass of 32.06 amu.

8. The empirical formula of a hydrocarbon (compound that contains only C and H) is found to be CH. Laboratory procedures have found that the molar mass of the compound is 78 g/mol. What is the molecular formula of this compound?

9. The molar mass of nicotine is 162.1 g/mol. It contains 74.0% carbon, 8.7% hydrogen, and 17.3% nitrogen. Determine nicotine's empirical formula and molecular formula.

10. Phenyl magnesium bromide is used as a Grignard reagent in organic synthesis. Determine its empirical and molecular formula if its molar mass is 181.313 g/mol and it contains 39.7458 % C, 2.77956% H, 13.4050% Mg, and 44.0697% Br.​