calculate the energy change resulting from the emission of 1.00 mole of photons at this 540 nm…

calculate the energy change resulting from the emission of 1.00 mole of photons at this 540 nm wavelength.\nenergy per photon = $3.68 \\times 10^{-19}$ j/photon\ne = ? kj/mole
Answer
Explanation:
Step1: Multiply by Avogadro's number
$E = 3.68 \times 10^{-19}\ \text{J/photon} \times 6.022 \times 10^{23}\ \text{photon/mol}$
Step2: Convert joules to kilojoules
$E = \frac{3.68 \times 10^{-19} \times 6.022 \times 10^{23}}{1000}\ \text{kJ/mol}$
Answer:
$222\ \text{kJ/mole}$