Phenol, commonly known as a carboxilic acid, was used by Josheph Lister as an antiseptic for surgery in 1865. Its principal use today is in the manufacture of phenolic resins and plastics. Combustion of 5.23 mg of phenol yields, 14.67 mg CO2 and 3.01 mg of H2O. Phenol contains only C, H and O. Based on the emperical formula of phenol what is the total number of atoms of carbon in one molecule of phenol?