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Postby sahajgill » Sun Oct 15, 2017 12:14 pm

In question number 55, the question states that "absorption takes place at the infared spectrum at 3600cm^-1. Is this referring to the wavelength, or the diameter?

Eryn Wilkinson 3H
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Re: 1.55

Postby Eryn Wilkinson 3H » Sun Oct 15, 2017 1:23 pm

I think that this is actually referring to energy. It says in the background of the problem that vibrational energy is expressed in reciprocal centimeters (cm^-1), and you can convert this to frequency by multiplying it by the speed of light.

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Re: 1.55

Postby Chem_Mod » Mon Oct 16, 2017 11:27 pm

Wilkinson is right. Actually that is called wavenumber and in spectroscopy it is defined as 1 over wavelength.

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