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What Is The Energy Difference?

Sodium atoms emits light with a wavelength of 350 nano meters (nm) when and electron moves from a 4p orbital to a 3s orbital.   What is the energy difference in kilo joules per mole?

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Posted on October 9, 2013, in Question and tagged , , , , , , , . Bookmark the permalink. 1 Comment.

  1. E = hc/lambda
    330nm = 330×10^-9m
    (6.626×10^-34Js) [(3.00×10^8m/s) / (330×10^-9m)] (1kJ/1000J)(6.022×10^23/mol)
    E = 363kJ

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