Question #f5014 Chemistry Bohr Model of the Atom Calculations with wavelength and frequency 1 Answer Krzysztof S. Nov 8, 2016 #E_(mol)=21.13 *10^5J# Explanation: 1 mol = Avogadro's number = #=6,02* 10 ^23# photons Energy 1 photon #E=h* nu= hc/lambda# #lambda=565 nm=565 *10^-9m # wave length #h=6.62 *10^-34J*s# Planck constant #c=3* 10^9m/s # speed of light #E(dim)= Js*m/s* 1/m=J# #E=3.51*10^-18 J# #E _(mol) =N_A*E # #E _(mol)=6.02*10^23*3.51*10^-18=21.13 *10^5J# Answer link Related questions Question #f2711 Question #6b062 Question #6b066 What is the formula for frequency? How can I calculate wavelength of radio waves? How can I calculate wavelength in meters? How can I calculate wavelength of a photon? How can I calculate the wavelength from energy? How do you calculate the wavelength from speed? How do you calculate the frequency of a wave? See all questions in Calculations with wavelength and frequency Impact of this question 2150 views around the world You can reuse this answer Creative Commons License