The HF molecule has a harmonic vibrational frequency of 1.241 x 1014 Hz.
a. Determine its force constant using the reduced mass of HF.
b. Assume that the F atom doesn’t move and that the vibration is due solely to the motion of the H atom. Using the mass of the H atom and the force constant just calculated, what is the expected frequency of the atom? Comment on the difference.
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