Chemistry

What is the energy of a 425 nm photon?
a) 2.82 x 10^-40 J
b) 1.6 x 10^-27 J
c) 4.67 x 10^-19 J
d) 4.67 x 10^-28 J

I don't get any of these answers. =S Please help...

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asked by Cad
  1. See your other post above.

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