To determine the number of atoms in a molecule of C2H5OH (ethanol), we need to count the individual atoms present in the formula.
C2H5OH can be broken down as follows:
- C2 represents two carbon atoms.
- H5 represents five hydrogen atoms.
- O represents one oxygen atom.
Adding these up, we have:
2 carbon atoms + 5 hydrogen atoms + 1 oxygen atom = 8 atoms
Therefore, there are 8 atoms in a molecule of C2H5OH.