Which step is NOT part of calculating the empirical formula?

To determine the empirical formula of a compound, one must follow a systematic process that includes several key steps. An important step is to divide the number of moles of each element by the smallest number of moles calculated. This helps in finding the simplest whole number ratio of the elements present.

Calculating the number of moles involves dividing the mass of each element by its relative atomic mass (Ar). This step is essential for converting grams into moles, allowing for a proper comparison between different elements.

Once the smallest number of moles is established, the resulting ratios are expressed as whole numbers, which is critical for accurately representing the empirical formula.

Multiplying by the largest is not a standard step in the calculation of the empirical formula. The focus remains on identifying and simplifying the ratio of the element moles to their smallest numbers, not adjusting by the largest. This approach leads to a direct derivation of the simplest form of the ratio, ensuring clarity in the representation of the formula.