1. Determine the empirical formula for a compound that contains 62.464 g of carbon, 5.215 g of hydrogen, 20.512 g of chlorine, and 27.697 g of oxygen.

2. Determine the molecular formula for a compound whose empirical formula is C, H,C1,O and
molecular mass is 322 g/mol.

3. A nitrogen-containing hydrocarbon is 54.5% carbon, 13.6% hydrogen, and 31.8%
nitrogen. Its molecular mass is known to be 88 grams per mole. Determine the empirical
and molecular formulas for this compound.

4. Determine the empirical formula of a compound containing only 1.645 g of nitrogen and
0.355 g of hydrogen.