The empirical formula is the simplest whole number formula for a compound (click to enlarge).
The empirical formula allows one to calculate the percentage of each element in a compound.
Study this table and you will see the difference between the empirical and molecular formula.
The empirical formula is multiplied by a whole number to obtain the molecular formula.
Bryan Sanctuary, a Professor of Chemistry at McGill University (Montreal, Canada), is the primary author of this blog as well as president of MCH Multimedia. | www.mchmultimedia.com | and co- author of Physical Chemistry - Laidler, Meiser, Sanctuary
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