Given that benzene (C₆H₆)
has a resonance energy of 150 kJ/mol, calculate the additional stability (in kJ/mol) provided by the resonance for each mole of benzene compared to a hypothetical non-resonant structure made of three isolated double bonds. Assume the energy of a carbon-carbon double bond in a molecule like ethylene (C₂H₄) is approximately 615 kJ/mol, and the energy of a carbon-carbon single bond (as in ethane, C₂H₆) is about 347 kJ/mol."