I think that the poster is not asking for the difference between empirical formula and molecular formula.
Posted on: Today at 13:06:22 Posted by: juanrga
from wikipedia - empirical formula
Empirical Formula gives the simplest ratio of the atoms in a molecule or a compound
the molecular formula identifies the number of each type of atom in a molecule
Yes, but I still think that the OP is asking for the difference between chemical formula
and molecular formula not
for the difference between empirical formula and molecular formula.
According to the Wikipedia both are synonyms (in fact, molecular formula redirects to chemical formula). But I disagree and as noted above IUPAC prefers the term molecular formula