Final answer:
There are 600 carbon atoms in 300 molecules of CH3CO2H, as each molecule contains two carbon atoms.
Step-by-step explanation:
To determine the number of carbon atoms in 300 molecules of acetic acid (CH3CO2H), you'll need to look at the molecular formula which indicates that each molecule contains two carbon atoms; one in the methyl group (CH3) and another in the carboxyl group (CO2H).
Since you have 300 molecules of acetic acid, you simply multiply the number of carbon atoms in one molecule by the total number of molecules.
Number of carbon atoms = 2 atoms/molecule × 300 molecules = 600 atoms.
Therefore, there are 600 atoms of carbon in 300 molecules of CH3CO2H.