A toxic heavy metal, cadmium, can be detected by atomic absorption spectroscopy (AAS), based on an absorption at 228.8 nm for the Cd2+(g) ion. A urine sample was taken from a patient with chronic exposure to heavy metals in his work environment, and analyzed using an AAS experiment. The sample was atomized [ Cd2+(aq) → Cd2+(g) ] in the AAS flame, and then irradiated with 228.8 nm light. Light absorption by the Cd2+(g) caused the photon count at the detector to drop by 1.046 J per litre (L) of sample. What is the concentration (M) of Cd2+(aq) in the sample? Can you use the equation C= n/ V, find n , which is n=m/M and then i dont know what to do.. use avogadro's equation and find out the energy per electron?