The photoelectric effect for a certain alloy has a threshold frequency of 9.30 x 1014 Hz. For light of this frequency, find the energy of one mole of photons (in kJ)

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In the photoelectric effect, the energy of the absorbed photon Is equal to the sum of the energy for the threshold frequency of the metal and the kinetic energy of the ejected electron. When light with a wavelength of 379 nm strikes a metal, the ejected electrons have a kinetic energy of 1.60 x 10^-19 J. What is the photoelectric threshold frequency (in s^-1) for the metal.

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The photoelectric effect for a certain alloy has a threshold frequency of 9.30 x 1014 Hz. For light of this frequency, find the energy of one mole of photons (in kJ)

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