Pearson eText Organic Chemistry -- Instant Access (Pearson+)
8th Edition
ISBN: 9780135213711
Author: Paula Bruice
Publisher: PEARSON+
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Textbook Question
Chapter 13, Problem 43P
Draw structures for a saturated hydrocarbon that has a molecular ion with an m/z value of 128.
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Draw structures for a saturated hydrocarbon that has a molecular ion with an m/z value of 128.
If the pK, of molecule 1 is 3.4, then the pK₂ of molecule/ion 2 is likely to be
equal to 3.4
higher than 3.4
lower than 3.4
HO.
outside the range of 0-14
1
NH₂
H₂N.
2
16. The peak with the greatest m/z value for alcohols is given by m/z M-18, where M represents
the molecular weight of the alcohols. The number 18 in "M-18" means that the radical cation
loses a (an)
molecule.
A
Carbon dioxide, CO2
В
Ethene, C2H4
C
Water, H20
Carbon monoxide, CO
Chapter 13 Solutions
Pearson eText Organic Chemistry -- Instant Access (Pearson+)
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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- Which of the following molecules will have a base peak at (M – 43)arrow_forwardis it possible for a compound to have an Rf > 1?arrow_forwardSuggest possible molecular formulas for a compound that has a molecular ion with an m/z value of 86.b. Can one of the possible molecular formulas contain a nitrogen atom?arrow_forward
- What would be the m/z ratio of the molecular ion (i.e, the parent ion from electron impact ionization) of 2,2-dimethylbutane? (Fill in an integer number)arrow_forwardAn unknown molecule has a molecular ion peak at 118 amu. It shows a base peak at 100 amu. What functional group is likely present in the unknown molecule? a) ketone b) fluorine c) alcohol d) amine e) ester f) alkenearrow_forwardIdentify 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.arrow_forward
- don't use handwriting 1. MORONS 20 The IR spectrum above indicates the presence of which of the following bond types or functional groups in the molecule? Select two. 100 90 70 40 4000 3000 Wavenumber (em') 2000 1000 The IR spectrum above indicates the presence of which of the following bond types or functional groups in the molecule? Select two. select two for each picture alcohol alkyne aldehyde or ketone carbonyl primary amine secondary amine carboxylić acid nitrile sp2 C-Harrow_forwardanalyze IR spectrum and identify which peaks correspond with functional groupsarrow_forwardThe base peak appears at m/z 83 for one of the following compounds and at m/z 97 for the other two. Match the m/z values for the base peaks with the appropriate compounds. compound xx 97 83 97 m/z Xarrow_forward
- Which of the following can be molecular formulas for the molecular ion at m/z= 102? Check all that apply. C₂H16 ✔C4H₂O3 C4H₂O₂ ✔ C5H₁2O 12 C₂H₁40 CgH 18 None of the above X X 3arrow_forwardPropose possible molecular formulas for a compound with a molecular ion at m/z = 154.arrow_forwardThe following spectra are taken from a compound that is an important starting material for organic synthesis. Part A Look at the mass spectrum and list the structural characteristics you can determine from that spectrum. 100 68 80 60 40 96 M* 20 10 20 30 40 50 60 70 80 ' 90 '100' 110' 120' 130 ' 140' 150' 160 mlz abundancearrow_forward
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