The molecule HCl absorbs infrared radation at 2881cm-1 .Convert this value
into frequency(in Hz)and wavelength(in µm)
(h=6.626*10^-34 Js,c=2.998*10^8m s-1)
plx help thx
Calculation about frequency(in Hz)and wavelength(in µm)in IR
2008-05-31 12:08 am
回答 (1)
2008-05-31 3:46 am
✔ 最佳答案
1 cm = (1/100) mHence, 1 cm-1 = 100 m-1
Wavenumber = 1/λ = 2881 cm-1 = 2881 x 100 m = 2.881 x 105 m-1
Frequency ν
= c/λ
= c(1/λ)
= (2.998 x 108 m s-1) x (2.881 x 105 m-1)
= 8.637 x 1013 s-1
= 8.637 x 1013 Hz
Wavelength λ
= 1/(2.881 x 105 m-1)
= 3.471 x 10-6 m
= (3.471 x 10-6 m) (1 x 106 μm m-1)
= 3.471 μm
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