Where can i find out about the energy in light at particular wavelengths?

Question

Is it true that "Light carries about 350 Kcal/mole at 550 nm"?

Re "there is no such thing as a mole of light":
sure there is. See Wikipedia: "An einstein is a unit used in irradiance and in photochemistry. One einstein is one mole of photons, regardless of their frequency. Therefore, the number of photons in an einstein is Avogadro's number. Irradiance might be measured in einsteins per square metre per second, if the frequency is well defined, as for a monochromatic source. If the optical frequency is not well defined this is a sloppy misuse of the term irradiance, which is defined in terms of power per unit area."
http://en.wikipedia.org/wiki/Einstein_%28unit%29

kennyk, it appears that you were so close. from an explanation i've since received elsewhere, all i have to do is to multiply the energy in eV as calculated by you by Avogadros constatnt to get the answer for one mole. Thank you!!

Answer 1

E=hf, energy = planks constant * frequency
frequency = C/w = speed of light / waveength

So E=hC/w
for 550 nm light E=1240/550 ev (electron volts)

No thats not true!!!!
there is no such thing as a mole of light

Answer 2

It is not clear what a mole of light might be.

Answer 3

Can u plz post this on http://www.tutorbuddy.org I will answer when you post