The mass spectrum of 3-methyl pentane shows a base peak at m/z = 57 BECAUSE the secondary butyl cation is the most stable possible fragment. a. The first statement is false and the second statement is true b. The first statement is true and the second statement is false c. The statement is entirely true d. Both statements are true but the BECAUSE is false e. The statement is entirely false
The mass spectrum of 3-methyl pentane shows a base peak at m/z = 57 BECAUSE the secondary butyl cation is the most stable possible fragment. a. The first statement is false and the second statement is true b. The first statement is true and the second statement is false c. The statement is entirely true d. Both statements are true but the BECAUSE is false e. The statement is entirely false
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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Transcribed Image Text:The mass spectrum of 3-methyl pentane shows a base peak at m/z = 57 BECAUSE the secondary butyl cation is the most stable possible fragment.
a. The first statement is false and the second statement is true
b. The first statement is true and the second statement is false
c. The statement is entirely true
d. Both statements are true but the BECAUSE is false
O e. The statement is entirely false
A proton signal measured in a 90MHZ spectrometer shows a doublet with peaks at 5.65 and 5.72 ppm. What is the chemical shift and coupling constant for this
doublet?
a. 8=5.69ppm, J=5.17 Hz
O b. 8=5.69ppm, J=6.30 Hz
c. 8=5.72ppm, J=6.30 Hz
O d. 8=5.72ppm, J=5.17 Hz
A carbon signal measured in a 300MHZ spectrometer with an observing frequency of 75.47MHZ is found to have a chemical shift of 137.71 ppm. What is the resonance
frequency of the carbon with this chemical shift?
a. 41313.00 Hz
b. 300041313 Hz
c. 74480393 Hz
d. 10392.97 Hz
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