EBK ORGANIC CHEMISTRY
8th Edition
ISBN: 8220102744127
Author: Bruice
Publisher: PEARSON
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Chapter 13.3, Problem 8P
Identify the hydrocarbon that has a molecular ion with an m/z value of 128, a base peak with an m/z value of 43, and significant peaks with m/z values of 57.71 and 85.
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Chapter 13 Solutions
EBK ORGANIC CHEMISTRY
Ch. 13.1 - Which of the following fragments produced in a...Ch. 13.2 - What distinguishes the mass spectrum of...Ch. 13.2 - What is the most likely m/z value for the base...Ch. 13.3 - Prob. 5PCh. 13.3 - a. Suggest possible molecular formulas for a...Ch. 13.3 - If a compound has a molecular ion with an...Ch. 13.3 - Identify the hydrocarbon that has a molecular ion...Ch. 13.4 - Predict the relative intensities of the molecular...Ch. 13.5 - Which molecular formula has an exact molecular...Ch. 13.5 - Prob. 11P
Ch. 13.6 - Sketch the mass spectrum expected for...Ch. 13.6 - The mass spectra of 1-methoxybutane,...Ch. 13.6 - Primary alcohols have a strong peak at m/z = 31....Ch. 13.6 - Identify the ketones responsible for the mass...Ch. 13.6 - Prob. 16PCh. 13.6 - Using curved arrows, show the principal fragments...Ch. 13.6 - The reaction of (Z)-2-pentene with water and a...Ch. 13.9 - a. Which is higher in energy: electromagnetic...Ch. 13.9 - Prob. 20PCh. 13.13 - Prob. 21PCh. 13.14 - Which occur at a larger wavenumber: a. the C O...Ch. 13.14 - Prob. 23PCh. 13.14 - Prob. 24PCh. 13.14 - Rank the following compounds from highest...Ch. 13.14 - Which shows an O H stretch at a larger...Ch. 13.16 - Prob. 27PCh. 13.16 - a. An oxygen-containing compound shows an...Ch. 13.16 - Prob. 29PCh. 13.16 - For each of the following pair of compounds, name...Ch. 13.17 - Which of the following compounds has a vibration...Ch. 13.17 - Prob. 32PCh. 13.18 - A compound with molecular formula C4H6O gives the...Ch. 13.20 - Prob. 34PCh. 13.20 - Prob. 35PCh. 13.21 - Predict the max of the following compound:Ch. 13.21 - Prob. 37PCh. 13.23 - a. At pH = 7 one of the ions shown here is purple...Ch. 13.23 - Prob. 39PCh. 13.23 - Prob. 40PCh. 13 - In the mass spectrum of the following compounds,...Ch. 13 - Prob. 42PCh. 13 - Draw structures for a saturated hydrocarbon that...Ch. 13 - Rank the following compounds in order of...Ch. 13 - For each of the following pairs of compounds,...Ch. 13 - a. How could you use IR spectroscopy to determine...Ch. 13 - Assuming that the force constant is approximately...Ch. 13 - Norlutin and Enovid are ketones that suppress so...Ch. 13 - In the following boxes, list the types of bonds...Ch. 13 - A mass spectrum shows significant peaks at m/z. =...Ch. 13 - Prob. 51PCh. 13 - Prob. 52PCh. 13 - Prob. 53PCh. 13 - The IR spectrum of a compound with molecular...Ch. 13 - Rank the following compounds from highest...Ch. 13 - Rank the following compounds from highest...Ch. 13 - What peaks in their mass spectra can be used to...Ch. 13 - Prob. 58PCh. 13 - Which one of the following five compounds produced...Ch. 13 - Prob. 60PCh. 13 - Each of the IR spectra shown below is accompanied...Ch. 13 - Prob. 62PCh. 13 - Prob. 63PCh. 13 - How can IR spectroscopy distinguish between...Ch. 13 - Prob. 65PCh. 13 - Prob. 66PCh. 13 - Give approximate wavenumbers for the major...Ch. 13 - Prob. 68PCh. 13 - Which one of the following live compounds produced...Ch. 13 - Phenolphthalein is an acid-base indicator. In...Ch. 13 - Prob. 71PCh. 13 - How can you use UV spectroscopy to distinguish...Ch. 13 - Prob. 73PCh. 13 - The IR and mass spectra for three different...
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- When a sample of the compound below is analyzed by mass spectrometry, the molecular ion will appear at m/z = You should also expect to see significant peaks at and When a sample of the compound below is analyzed by mass spectrometry, the molecular ion will appear at m/z = You should also expect to see significant peaks at and 154 152 40 154 153 TIVITY 156 | When a sample of the compound below is analyzed by mass spectrometry, the molecular ion will appear at m/z = You should also expect to see significant peaks at • Jand 111 112 110 When a sample of the compound below is analyzed by mass spectrometry, the molecular ion will appear at m/z = You should also expect to see significant peaks at and 43 41 42arrow_forwardWhen a sample of the compound below is analyzed by mass spectrometry, the molecular ion will appear at m/z = You should also expect to see significant peaks at and CIarrow_forwardThe low-resolution mass spectrum of an unknown analgesic X had a molecular ion of 151. Possible molecular formulas include C7H5NO3, C8H9NO2, and C10H17N. High-resolution mass spectrometry gave an exact mass of 151.0640. What is the molecular formula of X?arrow_forward
- On each mass spectrum above, indicate the base peak and the molecular ion peak (or at least where you would expect to find it) and if the base peak on the mass spectrum for linalool has m/z 71, propose a structure for this fragment ion.arrow_forward14.arrow_forwardThe following is a mass spectrum of octane. 100 Relative Intensity 80 60 40 20 0 10 20 30 40 50 60 x Incorrect. m/z 70 80 90 100 110 Which peak represents the molecular ion? The molecular ion peak is expected to appear at m/z = amu.arrow_forward
- A mass spec of a compound gave M+ peak at 118 of 57.7% of the base peak. It also had a peak at 120 of 2.6% of the base peak. This compound includes? A) S B) Br C) Cl D) P E) Narrow_forwardThe two mass spectra below correspond to two isomers of C4H10O: 1-butanol and 2-butanol. Match the spectrum with the appropriate compound. Place the m/z ratio and the structures for the labeled fragments in the table below. 100 Compound 00 2 GO 40 - 1 20 - 10 20 30 40 50 60 70 80 90 100 m/ 7 100 Compound 3 80 60 40 20 0 TH 10 15 20 25 30 35 40 45 50 55 60 65 70 75 m/z Fragment 1 Fragment 2 Fragment 3 Fragment 4 m/z Fragment Relative Intensity Re-ative Intersityarrow_forwardIdentify the parent and propose a structure for the base peak in the mass spectrum of butan-1-amine.arrow_forward
- Which compound is most likely to produce the following MS data? Please explain your problem solving arithmetic. m/z: 172 (100%), 174 (97%), 173 (6.6%), 175 (6.3%), 65 (43%), 39 (16%), 93 (15%)arrow_forwardConsider the following mass spectrum, which exhibits a parent peak of 79 m/z, a "P+2" peak of 81 m/z, and a base peak of 43 m/z. In conclusions that may be drawn from this spectrum. 100 80 60 40 20 10 20 30 40 m/z 50 60 70 80 The compound has two isomers. True O False Relative Intensityarrow_forwardDraw a structure for a carboxylic acid that has a molecular ion with an m/z value of 116.arrow_forward
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