What is the wavelength, in nanometers, of light with an energy content of 1.95 x 103kJ mol1?

What is the wavelength, in nanometers, of light with an energy content of 1.95 x 103 kJ mol−1 ?

Hint: The unit mol−1 should be interpreted as "per mole of photons".

Enter your answer with three significant figures.

Enter scientific notation as 1.23E4.

Enter only numbers in your answer. (Do not include units.)