Microwave Spectroscopy - Obtaining info when isotope absorptions are known

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  • #1
Horseb0x
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Heres the question
[PLAIN]http://img213.imageshack.us/img213/2669/16772870.jpg [Broken]
I know that I'm supposed to derive these values from the fact that I know the absorptions of 2 different isotopes of the diatomic molecule but I don't know how to go about doing it. I can obtain the masses of hydrogen, deuterium and iodine from the periodic table but I don't know how I can use this data to get the internuclear distances.
 
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  • #2
ehild
Homework Helper
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You need the formula for the rotational energy levels of diatomic molecules.

ehild
 

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