Question: Use your averaged force constant to calculate the predicted vibrational wavenumber of the C?H and C=O stretching mode of 2?Pentanone. Use the equation editor to

  1. Use your averaged force constant to calculate the predicted vibrational wavenumber of the C?H and C=O stretching mode of 2?Pentanone. Use the equation editor to show your calculations. (4 marks)

HH vC-H=12?c?k?=

vC=O=12?c?k?=

1102 peny 105 100- 96- 35 4000 3600 3400 3200 3000 2800

1102 peny 105 100- 96- 35 4000 3600 3400 3200 3000 2800 2600 2400 Wavenumbers (cm-1) 1800 1600 1400 1200 1000 BCO

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