Answer: 3,28 x 10^5.
Explanation:The energy of a single photon of light can be calculated using the formula:
energy = Planck's constant x frequency
where Planck's constant is 6.626 x 10^-34 J*s.
Substituting the given frequency, we get:
energy per photon = (6.626 x 10^-34 J*s) x (8.23 x 10^15 Hz)
energy per photon ≈ 5.45 x 10^-18 J
To calculate the energy of a mole of photons, we can use Avogadro's number, which is the number of particles in a mole. Avogadro's number is 6.022 x 10^23 particles per mole.
energy per mole of photons = energy per photon x Avogadro's number
energy per mole of photons ≈ (5.45 x 10^-18 J) x (6.022 x 10^23)
energy per mole of photons ≈ 3.28 x 10^5 J/mol
Therefore, the energy of a mole of photons of light with a frequency of 8.23 x 10^15 Hz is approximately 3.28 x 10^5 J/mol. Answer is 3,28 x 10^5.