Question: what is the formula to calculate empirical formula?
Answer: The empirical formula of a compound is the simplest whole number ratio of atoms of each element in the compound. ... For example, the molecular formula of glucose is C 6H 12O 6 but the empirical formula is CH 2O. This is because we can divide each number in C 6H 12O 6 by 6 to make a simpler whole number ratio.