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) HO. 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) c is 2) b NH2 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) c is

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) HO. 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) c is 2) b NH2 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) c is

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Which of the following statements regarding NMR spectroscopy is incorrect?
Topic: Transmittance and absorbance, lambert-beer law Substance X has an absorbance maximum at 530 nm. 500 mg of this substance X are dissolved in one liter of water and the reading at 530 nm in a 0.10 cm thick cell, with the absorbance value equal to 0.215. They dissolve in water until make 250 mL a 150 mg quantity of a salt known to contain species X as the only absorbing species at 530 nm. The absorbance reading of the latter solution in a 1 cm thick cell is 0.750, what is the weight% of X in the salt?