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October 20, 2014

Homework Help: Chemistry

Posted by Sarah on Friday, December 7, 2012 at 12:41am.

The ionization energy of hydrogen is 1313 kJ/mol. Covert this energy to:

wavelength (nm)

1/wavelength, reciprocal wavelength (cm^-1)

spectral region? (IR, visible, UV, etc.)

I know E=hv=hc/wavelength
h=6.62 x 10^-34 J-s
c= 3x10^8
v=c/wavelength

But for some reason trying to work a problem backwards is confusing me, especially since it's no multiple choice so I can't plug in numbers that way.

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