Question

How many sp2 hybridized carbon atoms are in lipitor?

Answer 1

There are 24 `sp^2` hybridized carbon atoms in Lipitor®.

Every double bonded carbon in a molecule is `sp^2` hybridized.

The structure of Lipitor® is

In the three benzene rings, there are 18 `"C=C"` bonds, for 18 `sp^2` hybridized carbon atoms.

In the pyrrole ring, there are 4 `"C=C"` bonds, for 4 `sp^2` hybridized carbon atoms.

The amide group has a `"C=O"` bond, for another `sp^2` hybridized carbon atom.

The carboxyl group has a `"C=O"` bond, for another `sp^2` hybridized carbon atom.

That makes 24 `sp^2` hybridized carbon atoms.