Concept explainers
(a)
Interpretation: The chemical shifts of the given absorptions are to be calculated.
Concept introduction: In NMR spectrum, peaks are known as resonances, lines or absorptions. On the horizontal axis, the position of absorption is generally referred to as chemical shift. The chemical shift of any absorption is calculated by the formula,
(b)
Interpretation: The frequency of each absorption at
Concept introduction: In NMR spectrum, peaks are known as resonances, lines or absorptions. On the horizontal axis, the position of absorption is generally referred to as chemical shift. The chemical shift of any absorption is calculated by the formula,
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ORGANIC CHEMISTRY W/CONNECT & ALEKS
- Steps and detailed explanation for work. Thanks!arrow_forward14.39 Draw the structure of each compound. a. (Z)-penta-1,3-diene in the s-trans conformation b. (2E,4Z)-1-bromo-3-methylhexa-2,4-diene c. (2E,4E,6E)-octa-2,4,6-triene d. (2E,4E)-3-methylhexa-2,4-diene in the s-cis conformationarrow_forwardPLEASE ANSWER ALL PARTS!!arrow_forward
- pls help on all, inlcude all steps.arrow_forward19. Complete the following chart for the incorrect electron configurations shown in the left column. When drawing the correct electron configuration, assume the same number of electrons that were shown in the incorrect configuration. Incorrect Electron Configuration 2p ↑↓ ↑ 2s ↑↓ 1s ↑↓↓ ਵੇ ਵੇ ਵੇ 3p ↑ ↑ ↑ - 38 ↑ 2p 2s ↑↓ 1s 2p 2s 1s ** ↑↓ ↑↓ ↑↑ 리리리 Which principle or rule is violated? Explain the violated principle or rule in your own words Draw the correct electron configurationarrow_forward14.36 Draw all reasonable resonance structures for each compound. a. + b. C. :O: d. :O: NH2 NH2 :O:arrow_forward
- 14.32 What diene and dienophile are needed to prepare each compound by a Diels-Alder reaction? a. b.arrow_forward14.34 Draw all reasonable resonance structures for each species. a. b. Ö :0: C. :0: :0: d. OH e. f. :O:arrow_forward7. The standard reduction potentials for two half-reactions are shown above. Which of the statements listed below will be true for the following reaction taking place under standard conditions? a. E° b. E° c. E° = d. E° e. E° = Al (s) + Cr³+ → Al³+ + Cr (s) 0.93 V, and the reaction is not spontaneous 0.93 V, and the reaction is spontaneous 2.39 V, and the reaction is not spontaneous 2.39 V, and the reaction is not spontaneous 0.93 V, and the reaction is spontaneous Cu2+ + 2e → Cu E° = +0.34 V Zn2+ + 2e → Zn E° = -0.76 V E° = -1.18 V Mn2+ + 2e → Mn 8. Based on the above reduction potential, which of the following reactions will occur spontaneously? a. Mn²+ + Cu → Mn + Cu2+ b. Mn²+ + Zn → Mn + Zn²+ c. Zn2+ + Cu → Zn + Cu²+ d. Zn²+ + Mn → Zn + Mn2+ e. Cu²+ + Zn²+ → Cu + Znarrow_forward
- 14.35 For which compounds can a second resonance structure be drawn? Draw an additional resonance structure and the hybrid for each resonance-stabilized compound. a. OCH3 OCH 3 b. C. d. CH3 NHCH3arrow_forwardpls help on all, inlcude all steps.arrow_forwardpls help on all, inlcude all steps.arrow_forward
- Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage LearningOrganic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning