Find the energy of a single photon of the visible light with a wavelength of 5.00 x 10² nm.

3.97 x 10^-28 J/photon

3.31 x 10^-31 J/photon

1.5 x 10² J/photon

3.97 x 10^-19 J/photon

Find the energy, in kJ/mol, of one mole of photons with a frequency of 7.50 x 10¹⁴ s^-1.

1.60 x 10^-19 kJ/mol

2.99 x 10² kJ/mol

2.99 x 10⁵ kJ/mol

1.60 x 10^-16 kJ/mol