1. The empirical formula of a compound with molecules containing 12 carbon atoms, 14 hydrogen atoms, and 6 oxygen atoms is __________.
2. Calculate the percent composition, by mass, of carbon in the following compounds: (use a calculator)
3. What is the molecular formula of each of the following compounds?
Empirical formula CH2, molar mass = 84 g/mol
Empirical formula HCO2, molar mass = 90.0 g/mol
B; 67%; 50%; C6H12; H2C2O4