Organic Chemistry&mod Mstgchem Ac Pkg
1st Edition
ISBN: 9780134465647
Author: Wade
Publisher: Pearson Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 12, Problem 12.27SP
Interpretation Introduction
Interpretation: The compound is to be identified and the fragments corresponding to the numbered peaks are to be stated.
Concept introduction: Mass spectroscopy provides the structural formula in addition to the molecular formula. The bond breaking does not occur randomly, it tends to form the most stable fragments. Fragmentation gives the resonance stabilized cations whenever possible.
To determine: The compound and the fragments corresponding to the numbered peaks.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Draw the molecular ion (M) for this molecule
formed in the mass spectrometer.
H
IIZ:
H
-e
Q
Is the compound giving rise to the mass spectrum
shown here more likely to contain sulfur, bromine, or
chlorine? Explain.
100
80 -
60-
40
20
40
80
120
160
m/z
Relative abundance
-유
Chemistry
Complete Compound 1 IR Data and name the component (name and structure). Molar mass is 144.2 g/mol
Frequency (cm-1) Assignment.
Chapter 12 Solutions
Organic Chemistry&mod Mstgchem Ac Pkg
Ch. 12.3 - Complete the following conversion table. (cm1)...Ch. 12.5 - Which of the bonds shown in red are expected to...Ch. 12.7C - For each hydrocarbon spectrum, determine whether...Ch. 12.9A - Spectra are given for three compounds. Each...Ch. 12.10 - The infrared spectra for three compounds are...Ch. 12.12 - Prob. 12.6PCh. 12.14B - Identify which of these four mass spectra indicate...Ch. 12.15A - Show the fragmentation that accounts for the...Ch. 12.15A - Show the fragmentations that give rise to the...Ch. 12.15B - Ethers are not easily differentiated by their...
Ch. 12.15C - Prob. 12.11PCh. 12 - Prob. 12.12SPCh. 12 - Prob. 12.13SPCh. 12 - All of the following compounds absorb infrared...Ch. 12 - Prob. 12.15SPCh. 12 - Four infrared spectra are shown, corresponding to...Ch. 12 - Predict the masses and the structures of the most...Ch. 12 - Prob. 12.18SPCh. 12 - Prob. 12.19SPCh. 12 - (A true story) While organizing the undergraduate...Ch. 12 - Prob. 12.21SPCh. 12 - Prob. 12.22SPCh. 12 - An unknown, foul-smelling hydrocarbon gives the...Ch. 12 - covered a synthesis of alkynes by a double...Ch. 12 - Three IR spectra are shown, corresponding to three...Ch. 12 - Prob. 12.26SPCh. 12 - Prob. 12.27SPCh. 12 - Prob. 12.28SPCh. 12 - The ultimate test of fluency in MS and IR is...Ch. 12 - Prob. 12.30SPCh. 12 - Consider the following four structures, followed...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- What is the molecular formula of the attached image?arrow_forwardThe mass spectrum below most likely belongs to which structure? Explain your answer. 100 45 80 60 15 40 60 20 20 50 mass/charge (m/z) CH-CH-CH-OH =-CI CH3-CH CH-NH2 CH3-CH-0-CH3 HC-CH-OH H- relative abundance 40 09arrow_forwardUsing the rule of 13, what is a possible formula for M=113 (100%) on a mass spectrum? all of the above are possible molecular formulas CH130 CH15Narrow_forward
- Question - The mass spectrum of ibuprofen is given below. Identify the fragments that produce peaks at 206, 161, 119 and 91 on the mass spectrum. 163 161 CH3 CH3 OH Labios 119 100 80 60 40 20 0 50 100 150 200 H3C 91 107117 206 0arrow_forwardWhat is not true about mass spectrometry? Question 51 options: In a mass spectrometer, a compound is first vaporized and then bombarded with high energy electrons which generates a radical cation that is symbolized by (M)+• A molecular ion is often very unstable and susceptible to fragmentation It is used to determine the molecular weight and molecular formula of a compound. In a mass spectrometer, a compound is converted into ions and radicals. The neutral radicals are then separated by a magnetic field. Only the molecular ion and cationic fragments are deflected, and they are then separated by their mass-to-charge ratio (m/z)arrow_forwardIndicate the functional groups present in the IR spectra shown below (you may choose more than one answer): choices: N-H group C≡N group Alkene (C=C) group C=O group Aromatic ring group O-H group Alkyne (C≡C) grouparrow_forward
- Two unlabeled samples are found in a lab. One is methylcyclohexane, the other is ethylcyclopentane. To identify them, the mass spectrum of each was taken, shown below. Which is sample A and which is sample B? Relative abundance (%) Relative abundance (%) 100 80 60 40 20 0 100 80 60 40 20 0 10 10 20 20 17 17 41 40 41 40 55 60 m/z 55 60 m/z- 69 80 80 83 Sample A 98 100 Sample B 98 100 120 120arrow_forwardHow can you distinguish aldehydes, ketones, and carboxylic acids from each other using IR spectra? Explain using specific examples.arrow_forwardHow would you use mass spectrometry to distinguish between chloroform (CHCl3) and deutorated chloroform (CDCl3)?arrow_forward
- Can a low-resolution mass spectrometer distinguish between C2H5 + and CHO+ ?arrow_forwardThere is mass spectrum. What is the molecule compound name?arrow_forwardMass spectrometry is often used to both identify and quantify compounds. What is different between mass spectra with changing concentrations of a compound? How would you design a method (i.e. what would you need) to both identify and quantify a compound using mass spectrometry?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning
Organic Chemistry: A Guided Inquiry
Chemistry
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Cengage Learning
IR Spectroscopy; Author: Professor Dave Explains;https://www.youtube.com/watch?v=_TmevMf-Zgs;License: Standard YouTube License, CC-BY