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15. Analytical Techniques:IR, NMR, Mass Spect - Part 1 of 4

15. Analytical Techniques:IR, NMR, Mass Spect / NMR Spectroscopy / Problem 2

Problem 2

How much do two signals differ in a 500 MHz spectrometer, if in a 400 MHz spectrometer they differ by 3.5 ppm?

A

2.5 ppm

B

4.5 ppm

C

3.5 ppm

D

1.5 ppm