4. Complete the assigned problem assigned from the textbook in part a and then answer part b a. 15.52 Propose a structure consistent with each set of data. For full credit, [8 pts] . Indicate what the IR data tells you about the compound. Label each signal (treat the 5 H feature at 7.2-7.5 ppm as a single signal) to indicate its origin in the structure. You may put an abbreviation on the spectrum itself. Show an accounting of the carbon and hydrogen atoms starting with the given CH,, and subtracting identified groups as shown in class. • Draw a box around your final structure so that there is no confusion in grading. C8H10: IR absorptions at 3108-2875, 1606, and 1496 cm-1 1H NMR spectrum 5 H 2 H 3 H 8 7 6 5 4 3 2 1 ppm b. How many signals will appear in the aromatic region of the 13C NMR spectrum? A number will suffice for full credit, but you are welcome to redraw your answer to part a and indicate carbon atoms of different types if it will help you determine your answer. [2 pts]

Please help, am using old tests to study for MCAT and i need help with this question! Which compounds (from the picture attached) corresponds to the 4H NMR in the image attached.  Annotate the spectra with any and all relevant signals that demonstrate the relationship and support your answer choice.Explain the meaning behind your annotations and how they correspond to the structure you choose. thanks in advance

Here's an NMR spectrum. Which of the suggested chemical structures is it consistent with? (NB: Individual signals are defined by the integral labels. Some of the signals have fine structure, i.e. they are clusters of lines very close together, but you don't need to consider that feature to answer this question). 11 Select one: O 10 요요 요 50 H 9 2H 2H 8 1 H [ 7 6 5 ppm 4 2H 3 2 2H 1 ЗН 0

The following molecule will give two signals in the proton (1H) NMR.   What is the ratio of the signal intensities for the two peaks? 1.) 2:1 2.) 2:2 3.) 3:1 4.)3:2

For the following spectrum on your paper match to the possible molecule from the list and provide visual workup and/or <25 words to justify your choices. IE) corelate peaks to protons on molecule. 11 C 10 9 8 7 6 5 ppm 4 3 2 요 1 2 0 سلام H 3 احمد 4 S

Interpret the attached set of spectra to propose a structure for the compound.  Write directly on the spectral traces so I can follow your reasoning.

Attached is the 13C-NMR Spectrum of 1,2,3,4-tetraphenylnapthalene (CDCl3) Can you provide  (chemical shift (experimental),chemical shift (literature), assignment)  Chemical shift δ(ppm) Experimental  Chemical shift δ(ppm) Literature Assignment

The following NMR corresponds to the molecule depicted below ran without reference. Assign the carbons to the peaks of the spectrum. Do this approximating the shift based on the atoms the Cs are attached to.  The question & answer options are attached.

help please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working

Please give Experts solution only with explanation and step by step