Chromatogram uV 30000000- 20000000- 10000000- 0- 0.5 0.97 1.0 1.5 1.72 2.0 2.5 SFID1 min

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do you predict for the highlighted C-H bond(s)? Which chemical shift and peak shape (spin-spin splitting) A 12ppm B 10ppm C 7-8ppm D 5-6ppm E 4ppm F 2ppm G singlet H doublet I triplet J quartet K multiplet

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Question 10 of 18 Match the peaks in this spectrum with the carbons on the structure below. A) I: 11.5 ppm II: 54.3 ppm II: 23.3 рpm IV: 36.2 ppm B) I: 36.2 ppm II: 11.5 ppm II: 23.3 рpm IV: 54.3 ppm C) I: 36.2 ppm II: 23.3 ppm IL III IV III: 54.3 ppm IV: 11.5 ppm D) 1: 36.2 ppm II: 54.3 ppm I: 23.3 рpm IV: 11.5 ppm

Why is it that D hydrogens have a higher chemical shift than the E hydrogens? Aren't the D hydrogens less shielded than the E hydrogens which have carbons surrounding on both sides? And less shielding means higher chemical shift required?

5, Draw the correct molecule in the box to the right. Label the relevant peaks in the spectra with the proper functional group. If the absence of key peaks led to your choice, indicate which key peaks were absent.

QUESTION 7 What IR stretching group will you see for the following compound? OA. sp2 C-H and sp3 C-H only OB. C=C, sp3 C-H, sp2 C-H O C. sp2 C-H and C=C only O D. OH, sp2 C-H, C=C QUESTION 8

need soon both

Consider the following compounds, determine how many peaks would the circled protons be split into? CI H Br H H₂C CH3 H 11 OH ||| HJO-H Н C-CH3 Н