Multiple ChoicePredict the splitting pattern (multiplicity) for the following molecule: 561views5rank4comments
Multiple ChoicePredict the splitting pattern (multiplicity) for the following molecule: 818views3rank1comments
Textbook QuestionPredict the multiplicity (the number of peaks as a result of splitting) and the chemical shift for each shaded proton in the following compounds. (a) CH3-CH2-CCl2-CH3 (b) 955views
Textbook QuestionWhy is there no coupling between the a and c protons or between the b and c protons in the cis and trans alkenes shown in Figure 14.20?437views
Textbook QuestionPredict the splitting patterns for the signals given by the compounds in Problem 4. d. 398views
Textbook QuestionPredict the splitting patterns for the signals given by the compounds in Problem 4. c. 435views
Textbook QuestionLabel each set of chemically equivalent protons, using a for the set that will be at the lowest frequency in the 1H NMR spectrum, b for the next lowest, and so on. Indicate the multiplicity of each signal. c. 515views
Textbook QuestionIn Figure 15.34, Hₐ was assumed to be 'up.' How does the analysis change if we assume instead that Hₐ is down?317views
Textbook QuestionThough Figure 15.34 was concerned with the appearance of Hₐ , how would H₆ appear in the spectrum?330views
Textbook QuestionEvery number in Pascal’s triangle is the sum of the two numbers above it. Given this, fill in the missing numbers.<IMAGE>275views
Textbook QuestionIndicate the number of signals and the multiplicity of each signal in the 1H NMR spectrum of each of the following compounds:c. ClCH2CH2CH2Cl 253views
Textbook QuestionIndicate the number of signals and the multiplicity of each signal in the 1H NMR spectrum of each of the following compounds: a. CH3CH2CH2CH2CH2CH3708views
Textbook QuestionPredict the splitting patterns for the signals given by the compounds in Problem 4. i. 447views
Textbook QuestionPredict the splitting patterns for the signals given by the compounds in Problem 4. j. 460views
Textbook Question(a) Draw all of the possible spin states to explain why a hydrogen with four neighbors appears as a quintet (quint, five peaks).310views
Textbook Question(•) Predict the splitting pattern for each of the indicated hydrogens in Assessment 15.59. a394views
Textbook Question(•) Predict the splitting pattern for each of the indicated hydrogens in Assessment 15.59. b316views
Textbook Question(•) Predict the splitting pattern for each of the indicated hydrogens in Assessment 15.59. c337views
Textbook Question(•) Predict the splitting pattern for each of the indicated hydrogens in Assessment 15.59. e347views
Textbook QuestionDescribe the 1H NMR spectrum you would expect for each of the following compounds, indicating the relative positions of the signals: b.385views
Textbook QuestionDescribe the 1H NMR spectrum you would expect for each of the following compounds, indicating the relative positions of the signals: d.415views
Textbook QuestionDescribe the 1H NMR spectrum you would expect for each of the following compounds, indicating the relative positions of the signals: i. 495views
Textbook QuestionHow would the 1H NMR spectra for the four compounds with molecular formula C3H6Br2 differ?589views
Multiple ChoiceWhich of the following compounds gives a 1H NMR spectrum consisting of only a singlet, a triplet, and a pentet?68views
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