Using the concept of the mole we can determine the empirical formula of a given compound. The empirical formula indicates the atoms in a substance in their smallest whole number ratio.
3.5 Empirical Formula
Once the concept of the empirical formula is established we can use experimental data to perform calculations.
3.5 Empirical Formula Calculation
If we have enough experimental data, we can determine the molecular formula of a substance from its empirical formula. We are often given the molecular weight or molar mass in addition to the empirical formula, allowing us to calculate the molecular formula.
3.5 Molecular Formula
3.5 Molecular Formula Example Problem