Question 40 of 40 Consider the following two compounds. Determine how UV spectroscopy could be used to differentiate between the two molecules. Submit A Compound I will have a larger λ(max). B Compound II will have a larger λ(max). C These two compounds will be indistinguishable by UV spectroscopy.

How could spectroscopy be used to support that the below reaction occurred? Choose all that apply. excess CH HCI H,C, CH3 v 1st attempt Choose one or more: O Use IR; the product has a strong broad peak at 2200 cm-1, but the starting material does not. O Use UV-vis; the product would not show an absorbance in the spectrum range due to a shorter Åmax from that of the starting material O Use IR; the product has a sharp narrow peak at 3300 cm-1, but the starting material does not. O IR will not be useful as no detectable change in the spectrum will occur. O UV-vis will not be useful because no change in åmax Would occur. Use IR; the starting material has a sharp narrow peak at 3300 cm-1, but the product does not. Use UV-vis; the product would show an absorbance at a longer Âmax from that of the starting material. O Use IR; the starting material has a strong broad peak at 2200 cm-1, but the product does not.

Select the compound from each group that matches the HNMR spectrum shown below.

Select the compound from each group that matches the HNMR spectrum shown below.

How could 1H NMR spectroscopy be used to distinguish betweencompounds X and Y?

8. Given the ¹H NMR spectrum provided, give the structure of the molecule. The IR shows two strong peaks at 1750 cm¹ and 3400 cm¹. The molecular formula is C3H6O2. Integrations are given below. —|- 10 1H 9 8 6 7 Chemical Shift (ppm) 1H 5 2H 3 2H 2

In the attached H1-NMR, draw and identify each set of equivalent hydrogens in the structure and list peak they belong to in the NMR spectrum.

7:38 Question 35 of 36 LTE 76 Submit A 'H NMR spectrum is shown for a molecule with the molecular formula of C9H10O2. Draw the structure that best fits this data. Select to Draw a

Determine the following for the compound C6H15N a.) degrees of unsaturation  b.) Assign the principal IR absorption bands above 1500 c.) draw the structure of the compound  d.) label the protons on your structure with letters and assign them to peaks on the NMR spectrum.

Which one of the following compounds (from Figure #7) produced the 'H NMR spectrum (from Figure #8) shown below? Figure #7 inte compound A compound B compound C compound D Please click here if image does not display. Figure #8 3 203938 PPM 10 9 8 7 5 4 3 2 1 8 (ppm) Please click here if image does not display. O compound A O compound D O compound C O compound B