What does the empirical formula indicate?
Empirical formulas provide the lowest whole number ratio of elements present in a compound.
Formulas for ionic compounds are always empirical formulas.
NaCl is a 1:1 ratio of sodium and chloride ions
Empirical fomulas also can be written for molecular compounds (covalent Bonding)
Hydrogen peroxide (
Here is a video which discusses how to calculate an empirical formula.
Simple explanation, nice looking website https://www.chem.wisc.edu/deptfiles/genchem/sstutorial/Text6/Tx65/tx65.html