Simple energy with photons problem help

  • Thread starter BuBbLeS01
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  • #1
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Simple energy with photons problem...help!!!

Homework Statement


What is the energy of 1.7 mol of photons that have a wavelength of 0.28 μm?


Homework Equations





The Attempt at a Solution


E = HC/W = (6.63e^34)*(3e^8)/0.00000028 = 7.10357e^-21
what do I do with the mol part? I know 1 mol = 6.022e^23 so I tried multiplying it by that but its wrong...do I divide. Or is there something else I have to do?
 

Answers and Replies

  • #2
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your approach looks ok. you have 1.7 mol of photons so you have 1.7*(6.022*10^23)
photons
 
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