Simple energy with photons problem help

[BuBbLeS01]

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?

 

[kamerling]

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