Final answer:
A single, free, unbounded and unresolved cAMP molecule in isolation usually contains 11 hydrogen atoms. However, if the starting point of the molecule has an odd number of hydrogens on the left, the number of hydrogen-containing molecules on the left needs to be doubled.
Step-by-step explanation:
In general, a single, free, unbounded and unresolved cAMP molecule contains 11 hydrogen atoms.
However, if the starting point of the molecule has an odd number of hydrogens on the left, the number of hydrogen-containing molecules on the left needs to be doubled to produce an even number of hydrogens.