how do i figure out "What is the energy of 1 mole of these photons"

energy= 2.93x10^-19
wave length = 670.8 nm

If the energy is 2.93E-19/photon, the multiply by 6.02E23 to find the energy of a mole of them.

To calculate the energy of 1 mole of photons, we need to use the formula:

Energy = Avogadro's constant * Energy per photon

1 mole of any substance contains 6.022 x 10^23 entities. In this case, we want to find the energy of 1 mole of photons, which is given by:

Energy = (2.93x10^-19 J) * (6.022 x 10^23 photons) .

To solve this, we need to multiply the energy per photon by Avogadro's constant.