Question- A compound contains C, H, O, and N. On combustion in air, a 0.157g sample produced 0.213g CO2 and 0.0310g of H2O. In a separate experiment, a 0.103g sample produced 0.0230g of NH3. Determine the empirical formula (include C, H, O, and N) of the compound.
Note the extra element, N, that is to be included in the analysis
It is not a question in the book, so I just need the full solution of deriving!