one moles of a compound containing only carbon, hydrogen, and nitrogen was burned in the presence of excess oxygen to give 264g of CO2, 63 g of H20, and 46 g of NO2. Calculate the molecular formula of the compound.

Answer 1

Use the first to determine the moles of C, the second the moles of H, and then to determine the moles of N, use the last data.

The mole ratio you get from the moles of C, H, N is the empirical formula.