# Chapter 6 The Structure of Atoms - 6-2 Quantization: Planc, Einstein, Energy, and Photons - Review & Check for Section 6-2 - Page 226: 1

A

#### Work Step by Step

$\lambda=310\ nm=0.31\times10^{-6}\ m$ $c=\lambda\times\nu$ $\nu=9.67\times10^{14}\ s$ $E=h\times\nu$ $E=6.41\times10^{-19}\ J/photon$ Per mol: $E=385.9\ kJ/mol$

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