wave length problem- chemistry?

Question

Covalent bonds in a molecule absorb radiation in the IR range and vibrate at characteristic frequencies.

(a) The C-O bond in an organic compound absorbs radiation of wavelength 9.7 µm. What frequency (in s-1) corresponds to that wavelength?

(b) The H-Cl bond has a frequency of vibration of 8.634 1013 Hz. What wavelength (in µm) corresponds to that frequency?

Answer 1

Now, frequency (in s-1 or in Hz) and wavelength of any electromagnetic wave are related through the speed of light:
c = ν•λ
where c is the speed of light 2.998x10^8 m/s, ν the frequency in 1/s or Hz, and λ the wavelength in m. Now you do the math.