The empirical formula is the simplest whole number ratio of atoms in a compound. It shows the relative number of each type of atom present in a compound.
The empirical formula is determined through experimental data, specifically the masses of each element present in the compound. These masses are then converted into moles and divided by the smallest number of moles to get the ratio of atoms.
Yes, the empirical formula can be the same as the molecular formula if the compound is made up of simple, whole number ratios of atoms. However, in more complex compounds, the empirical and molecular formulas may be different.
The empirical formula is important in chemistry because it provides information about the composition of a compound and its structure. It can also help in predicting physical and chemical properties of a compound.
Yes, the empirical formula can change if the experimental data used to determine it is incorrect or if the compound undergoes a chemical reaction that changes its composition. It is important to regularly verify the empirical formula through experiments and adjust it accordingly.