MODIFIED MASTERING CHEMISTRY W/ ETEXT
8th Edition
ISBN: 9781323782507
Author: Bruice
Publisher: PEARSON
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Textbook Question
Chapter 14.12, Problem 24P
Explain the relative chemical shifts of the benzene ring protons in Figure 14.18.
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Chapter 14 Solutions
MODIFIED MASTERING CHEMISTRY W/ ETEXT
Ch. 14.1 - Prob. 1PCh. 14.1 - Prob. 2PCh. 14.4 - How many signals would you expect to see in the 1H...Ch. 14.4 - How many signals would you expect to see in the 1H...Ch. 14.4 - How could you distinguish the 1H NMR spectra of...Ch. 14.4 - Draw an isomer of dichlorocyclopropane that gives...Ch. 14.5 - Prob. 7PCh. 14.5 - Prob. 8PCh. 14.5 - Prob. 9PCh. 14.5 - Where would you expect to find the 1H NMR signal...
Ch. 14.6 - Prob. 11PCh. 14.7 - Prob. 12PCh. 14.7 - Prob. 13PCh. 14.7 - Without referring to Table 14.1, label the proton...Ch. 14.8 - [18]-Annulene shows two signals in its 1H NMR...Ch. 14.9 - How would integration distinguish the 1H NMR...Ch. 14.9 - Which of the following compounds is responsible...Ch. 14.10 - Prob. 19PCh. 14.10 - Explain how the following compounds, each with the...Ch. 14.10 - The 1H NMR spectra of two carboxylic acids with...Ch. 14.11 - Draw a diagram like the one shown in Figure 14.12...Ch. 14.12 - Indicate the number of signals and the...Ch. 14.12 - Explain the relative chemical shifts of the...Ch. 14.12 - How can their 1H NMR spectra distinguish the...Ch. 14.12 - Identify each compound from its molecular formula...Ch. 14.12 - Predict the splitting patterns for the signals...Ch. 14.12 - Describe the 1H NMR spectrum you would expect for...Ch. 14.12 - Propose structures that are consistent with the...Ch. 14.13 - Prob. 30PCh. 14.13 - Identify the compound with molecular formula...Ch. 14.14 - Prob. 32PCh. 14.15 - a. For the following compounds, which pairs of...Ch. 14.15 - How would the 1H NMR spectra for the four...Ch. 14.17 - Explain why the chemical shift of the OH proton of...Ch. 14.17 - Prob. 38PCh. 14.17 - Prob. 39PCh. 14.17 - Prob. 40PCh. 14.20 - Answer the following questions for each compound:...Ch. 14.20 - Prob. 42PCh. 14.20 - How can 1,2-, 1,3-, and 1,4-dinitrobenzene be...Ch. 14.20 - Identify each compound below from its molecular...Ch. 14.22 - Prob. 45PCh. 14.22 - What does cross peak X in Figure 14.34 tell you?Ch. 14 - Prob. 47PCh. 14 - Draw a spitting diagram for the Hb proton and give...Ch. 14 - Label each set of chemically equivalent protons,...Ch. 14 - Determine the ratios of the chemically...Ch. 14 - How can 1H NMR distinguish between the compounds...Ch. 14 - Prob. 52PCh. 14 - Match each of the 1H NMR spectra with one of the...Ch. 14 - The 1H NMR spectra of three isomers with molecular...Ch. 14 - Prob. 55PCh. 14 - Prob. 56PCh. 14 - Compound A, with molecular formula C4H9Cl, shows...Ch. 14 - Would it be better to use 1H NMR or 13C NMR...Ch. 14 - There are four esters with molecular formula...Ch. 14 - Identify the compound with molecular formula C6H14...Ch. 14 - An alkyl halide reacts with an alkoxide ion to...Ch. 14 - The 1H NMR spectra of three isomers with molecular...Ch. 14 - Identity each of the following compounds from its...Ch. 14 - Identity each of the following compounds from its...Ch. 14 - Prob. 65PCh. 14 - How can the signals in the 6.5 to 8.1 ppm region...Ch. 14 - The 1H NMR spectra of two compounds, each with...Ch. 14 - Draw a splitting diagram for the Hb proton if Jbc...Ch. 14 - Sketch the following spectra that would be...Ch. 14 - How can 1H NMR be used to prove that the addition...Ch. 14 - Identity each of the following compounds from its...Ch. 14 - Dr. N. M. Arr was called in to help analyze the 1H...Ch. 14 - Calculate the amount of energy (in calories)...Ch. 14 - The following 1H NMR spectra are four compounds,...Ch. 14 - When compound A (C5H12O) is treated with HBr, it...Ch. 14 - Identity the compound with molecular formula...Ch. 14 - Identity each of the following compounds from its...Ch. 14 - Prob. 78PCh. 14 - Identify each of the following compounds from its...
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- Arrange in ascending order of chemical shift (δ) the protons indicated in thestructure below. Fill in the empty boxes with the corresponding letters. b. Explain your choice of the relative order of the chemical shifts of the protons Hc andHD.arrow_forwardTrue or False: The chemical shift of a particular proton provides information about the electronic/chemical environment of that proton. Could you explain how to do this in detail?arrow_forwardPredict the chemical shift of the following compounds? find out different types of protons and give their approximate chemical shift values based on their shielding and de shielding.arrow_forward
- explain the difference in intensities of the vibrational peaks in the spectrum. Why is the center peak the most intense, whereas the peak on the far right is the lease intense?arrow_forwardChemical shift is related to electron density of the atom. Atoms with a greater electron density are "shielded" from the magnetic field and therefore have a lower chemical shift. Using chemical reasoning and the information about shielding above, provide an explanation for the trend in chemical shift for the CH2 carbon atoms based on the effect of neighboring atoms.arrow_forwardExplain why the protons that can exhibit hydrogen bonding exhibit extremely variable absorption positions over a wide range ?arrow_forward
- (b) Estimate the 1H chemical shift for HB of 2-indanol and HA of 1-indanol. Is one more downfield than the other or are they expected to be similar? Explain your answer.arrow_forward7 for this 1H NMR question asking about how many signals there is. If can, please draw it out..arrow_forwardDetermine the structure of this compund K, and label which hydrogens refer to which chemical shifts.arrow_forward
- Each of the two IR spectra are one of the following benzene derivatives: benzaldehyde, benzoic acid, benzyl alcohol, methyl benzoate, and benzamide. What derivative is represented by each graph?arrow_forwardDetermine the structure of the molecule, provide the missing splitting pattern, and label which hydrogens correspond to which chemical shifts.arrow_forwardThe chemical environment of protons can be deduced from their chemical shifts. What are the relative chemicals shifts of the protons at the labeled positions?arrow_forward
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