1. Identify the compound and its formula:
The compound is C8H11NO2, which represents a molecule containing 8 carbon atoms, 11 hydrogen atoms, 1 nitrogen atom, and 2 oxygen atoms.
2. Determine the number of oxygen atoms per molecule:
There are 2 oxygen atoms per molecule of C8H11NO2.
3. Calculate the total number of oxygen atoms:
Since you have 3.7 molecules of C8H11NO2, the total number of oxygen atoms is:
3.7 molecules * 2 oxygen atoms/molecule = 7.4 oxygen atoms
4. Convert atoms to moles:
To convert from atoms to moles, we use Avogadro's number (6.022 x 10^23 atoms/mole):
7.4 oxygen atoms * (1 mole / 6.022 x 10^23 atoms) = 1.23 x 10^-23 moles
Therefore, there are approximately 1.23 x 10^-23 moles of oxygen in 3.7 molecules of C8H11NO2.
Important Note: It's highly unusual to work with such a small number of molecules. In most chemical situations, you would be dealing with much larger quantities, measured in grams or moles.