What is the wavelength (in nm) of radiation that has an energy content of 2.83x10^3 kj/mol

To determine what the wavelength is in nm simply make use of the following equation:

E = h • f

F = 1/wavelength

H = planks constant. 6.626 x 10^-34 Js

Solve for f and then solve for wavelength.

Since you know the energy of the wave, and planks constant.

Convert the energy into Joules before solving.

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