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9 October, 16:02

The following 1h nmr absorptions were obtained on a spectrometer operating at 200 mhz and are given in hz downfield from tms. Convert the absorptions to δ units.

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  1. 9 October, 18:41
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    We will use the formula below:

    Chemical shift in ppm = peak position in Hz (relative to TMS) /

    spectrometer frequency in MHz.

    a) 956Hz/200Hz = 4.78 ppm

    b) (2.40E3) / 200Hz = 12 ppm

    c) (1.97E3) / 200Hz = 9.85 ppm
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