The photon energy E1w = 8.8 * 10 ^ -19J expressed in electron volts.

Problem data: E1w (energy of a given photon) = 8.8 * 10-19 J.

To convert the energy of a given photon into electron-volts, we use the relationship: 1 eV = 1.602 * 10-19 J.

Therefore, 8.8 * 10-19 J / (1.602 * 10-19 J) = E1w / 1 eV and E1w = 1 eV * 8.8 * 10-19 J / (1.602 * 10-19 J) = 5.493 eV …

Answer: The energy of a given photon is 5.493 eV.



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