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ID: 1080643 • Letter: T
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the chemical environment the chemical environment the chemical environment the chemical environment Splitting of a signal in a proton NMR spectrum tells us the number of chemically non-equivalent hydrogens in the immediate vicinity of the hydrogen giving the signal. Predict the number of lines exhibited by hydrogens at the labeled positions in a first-order NMR spectrum. (Make the approximation that all coupling constants are equal.) 1) The number of lines exhibited by hydrogen(s) a is The number of lines exhibited by hydrogen(s) b is The number of lines exhibited by hydrogen(s) e is 2) The number of lines exhibited by hydrogens) a is 3 The number of lines exhibijed by hydrogen(s) b is The number of lines exhibited by hydrogen(s) e is 3 Retry Entire Group 9 more group attempts remaining Submit Answer PreviousExplanation / Answer
1)
the number of lines exhibited by hydrogen a = singlet (1) as adjacent carbon have no H atoms.
the number of lines exhibited by hydrogen b = quartet (4) as adjacent carbon have three H atoms.
the number of lines exhibited by hydrogen c = triplet (3) as adjacent carbon have two H atoms.
2)
the number of lines exhibited by hydrogen a = singlet (1) as adjacent carbon have no H atoms.
the number of lines exhibited by hydrogen b = pentate (5) as adjacent carbon have two H atoms.
the number of lines exhibited by hydrogen c = triplet (3) as adjacent carbon have two H atoms.
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