Sodium Lamps Emit Yellow Light with a Nominal Wavelength of 589

Multiple Choice

Sodium lamps emit yellow light with a nominal wavelength of 589 nm.What is the energy of these photons in kilojoules per mole?

A) 3.37 * 10^-9 kJ/mol
B) 2.35 * 10^-7 kJ/mol
C) 120 kJ/mol
D) 70.5 kJ/mol
E) 203 kJ/mol