Given that the stretching vibration of a typical C—H bond has a frequency of about 9 * 10¹³ s^–1, which peak(s) in the IR spectrum of nonane (Fig. 12.4) would you assign to the C—H stretching vibrations?

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percent transmittance 100 80 60 40 20 0 2.6 2.8 3 3.5 4 4.5 wavelength, micrometers 5 5.5 6 7 8 9 10 11 CH₂(CH₂)7CH3 nonane 3800 3400 3000 2600 2200 2000 1800 1600 1400 1200 1000 wavenumber, cm-¹ 12 13 14 1516 800 600