Answer
See the answer below.
Work Step by Step
$c=\lambda × \nu,\ \lambda=58.4\ nm$
$\nu=5.13×10^{15}\ 1/s$
$E=h×\nu$
$E=3.40×10^{-18}\ J/photon$
$E.N_A=2048\ kJ/mol$
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