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Worksheet 7 key - Chemistry 118A Winter 2008 TA Dani Solano...

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Chemistry 118A Winter 2008 TA: Dani Solano Week 7: Intro to NMR Part A: A hydrogen has a chemical shift of 5.25 ppm downfield of TMS. Convert this to frequency for the following spectrometers. 600 MHz 400 MHz 300 MHz 1575 Hz 2100 Hz 3150 Hz Part B: A hydrogen has a frequency of 1680 Hz downfield of TMS. Convert this to chemical shift for the following spectrometers. 600 MHz 400 MHz 300 MHz 5.60 ppm 4.20 ppm 2.80 ppm
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Part C: For each pair of molecules below, circle the one whose hydrogens will
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