help me with question 19 please and the NMR spectrum, please

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help me with question 19 please and the NMR spectrum, please

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Organic II Chem Lab 1H NMR Spectrum for Acetic Anhydride 7.0 100 TS 20 6.5 -5 JZ 6.0 5.5 5.0 4.5 4.0 3.5 3.0 +2.5 2.0 1.5 1.0 0.5 Dichoromethane 10.0 -0.5 11.0 10.5 10.0 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 55 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 -0.5 f1 (ppm) TH NMR Spectrum for the Product -1.5 998 なな SES -13 -12 1.1 10 0.9 FOS 07 05 05 FO 0.3 02 FO. NO FO OD KO 55 50 ppm) 110 105 10.0 25

Organic II Chem Lab 1H NMR Spectrum for Acetic Anhydride 7.0 100 TS 20 6.5 -5 JZ 6.0 5.5 5.0 4.5 4.0 3.5 3.0 +2.5 2.0 1.5 1.0 0.5 Dichoromethane 10.0 -0.5 11.0 10.5 10.0 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 55 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 -0.5 f1 (ppm) TH NMR Spectrum for the Product -1.5 998 なな SES -13 -12 1.1 10 0.9 FOS 07 05 05 FO 0.3 02 FO. NO FO OD KO 55 50 ppm) 110 105 10.0 25

Organic II Chem Lab 1H NMR Spectrum for Acetic Anhydride 7.0 100 TS 20 6.5 -5 JZ 6.0 5.5 5.0 4.5 4.0 3.5 3.0 +2.5 2.0 1.5 1.0 0.5 Dichoromethane 10.0 -0.5 11.0 10.5 10.0 9.5 9.0 8.5 8.0 7.5 7.0 6.5 6.0 55 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 -0.5 f1 (ppm) TH NMR Spectrum for the Product -1.5 998 なな SES -13 -12 1.1 10 0.9 FOS 07 05 05 FO 0.3 02 FO. NO FO OD KO 55 50 ppm) 110 105 10.0 25