The chemical shift in the 300 MHz spectrum. Interpretation: The chemical shift in the 300 MHz spectrum is to be determined. Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

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Answer 1

Question

Chapter 13, Problem 13.37SP

(a)

Interpretation Introduction

To determine: The chemical shift in the 300 MHz spectrum.

Interpretation: The chemical shift in the 300 MHz spectrum is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

(b)

Interpretation Introduction

To determine: The splitting value J in the 300 MHz spectrum.

Interpretation: The splitting value J in the 300 MHz spectrum is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

(c)

Interpretation Introduction

To determine: The number of hertz from the TMS peak observed in the absorption in the 300 MHz spectrum and 60 MHz instruments.

Interpretation: The number of hertz from the TMS peak observed in the absorption in the 300 MHz spectrum and 60 MHz instruments is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

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Students have asked these similar questions

Using a 60 MHz spectrometer, a chemist observes the following peak: doublet, J = 7 Hz, at 4.00 ppm How many hertz away from the TMS (tetramethylsilane, defined as 0 ppm) peak would this peak be in a spectrum collected on a 300 MHz spectrometer?

3. Identify C-Cl stretching peaks in CDC13 and CHC13 spectra. Do these peaks have exactly the same frequencies for both compounds? Explain your answer. 4. Is the C==O stretching frequency the same for acetone and deuterated acetone? Explain your answer. 5. Identify C==O overtone in acetone spectrum which corresponds to the transition from ground level, n=0, to the second excited level, n=2.

In a 300 MHz NMR spectrometer, A) what is the Larmor frequency in MHz of a 15N nucleus? g H = N 26.752; g = 2.7126; B) Using the same NMR instrument, suppose that a 13C nucleus from a sample generates a signal which has a frequency of 11,250 Hz higher than that from the carbons in TMS. What is the chemical shift of that carbon atom from the sample? A) 30 MHz; B) 0.15 ppm OA) 25 MHz; B) 0.35 ppm A) 35 MHz; B) 0.30 ppm OA) 25 MHz; B) 0.55 ppm

Answer 2

Question

Chapter 13, Problem 13.37SP

(a)

Interpretation Introduction

To determine: The chemical shift in the 300 MHz spectrum.

Interpretation: The chemical shift in the 300 MHz spectrum is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

(b)

Interpretation Introduction

To determine: The splitting value J in the 300 MHz spectrum.

Interpretation: The splitting value J in the 300 MHz spectrum is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

(c)

Interpretation Introduction

To determine: The number of hertz from the TMS peak observed in the absorption in the 300 MHz spectrum and 60 MHz instruments.

Interpretation: The number of hertz from the TMS peak observed in the absorption in the 300 MHz spectrum and 60 MHz instruments is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

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Answer 3

Question

Chapter 13, Problem 13.37SP

(a)

Interpretation Introduction

To determine: The chemical shift in the 300 MHz spectrum.

Interpretation: The chemical shift in the 300 MHz spectrum is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

(b)

Interpretation Introduction

To determine: The splitting value J in the 300 MHz spectrum.

Interpretation: The splitting value J in the 300 MHz spectrum is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

(c)

Interpretation Introduction

To determine: The number of hertz from the TMS peak observed in the absorption in the 300 MHz spectrum and 60 MHz instruments.

Interpretation: The number of hertz from the TMS peak observed in the absorption in the 300 MHz spectrum and 60 MHz instruments is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

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Answer 4

Question

Chapter 13, Problem 13.37SP

(a)

Interpretation Introduction

To determine: The chemical shift in the 300 MHz spectrum.

Interpretation: The chemical shift in the 300 MHz spectrum is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

(b)

Interpretation Introduction

To determine: The splitting value J in the 300 MHz spectrum.

Interpretation: The splitting value J in the 300 MHz spectrum is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

(c)

Interpretation Introduction

To determine: The number of hertz from the TMS peak observed in the absorption in the 300 MHz spectrum and 60 MHz instruments.

Interpretation: The number of hertz from the TMS peak observed in the absorption in the 300 MHz spectrum and 60 MHz instruments is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

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Answer 5

Chapter 13, Problem 13.37SP

(a)

Interpretation Introduction

To determine: The chemical shift in the 300 MHz spectrum.

Interpretation: The chemical shift in the 300 MHz spectrum is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

(b)

Interpretation Introduction

To determine: The splitting value J in the 300 MHz spectrum.

Interpretation: The splitting value J in the 300 MHz spectrum is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

(c)

Interpretation Introduction

To determine: The number of hertz from the TMS peak observed in the absorption in the 300 MHz spectrum and 60 MHz instruments.

Interpretation: The number of hertz from the TMS peak observed in the absorption in the 300 MHz spectrum and 60 MHz instruments is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

Answer 6

Chapter 13, Problem 13.37SP

(a)

Interpretation Introduction

To determine: The chemical shift in the 300 MHz spectrum.

Interpretation: The chemical shift in the 300 MHz spectrum is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

Answer 7

Chapter 13, Problem 13.37SP

(a)

Interpretation Introduction

To determine: The chemical shift in the 300 MHz spectrum.

Interpretation: The chemical shift in the 300 MHz spectrum is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

Answer 8

(b)

Interpretation Introduction

To determine: The splitting value J in the 300 MHz spectrum.

Interpretation: The splitting value J in the 300 MHz spectrum is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

Answer 9

(b)

Interpretation Introduction

To determine: The splitting value J in the 300 MHz spectrum.

Interpretation: The splitting value J in the 300 MHz spectrum is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

Answer 10

(c)

Interpretation Introduction

To determine: The number of hertz from the TMS peak observed in the absorption in the 300 MHz spectrum and 60 MHz instruments.

Interpretation: The number of hertz from the TMS peak observed in the absorption in the 300 MHz spectrum and 60 MHz instruments is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

Answer 11

(c)

Interpretation Introduction

To determine: The number of hertz from the TMS peak observed in the absorption in the 300 MHz spectrum and 60 MHz instruments.

Interpretation: The number of hertz from the TMS peak observed in the absorption in the 300 MHz spectrum and 60 MHz instruments is to be determined.

Concept introduction: The chemical shift is defined as the difference in parts per million in the absorption spectrum of a particular proton from the absorption position of a reference proton. Tetramethylsilane is taken as the reference proton. Chemical shifts are measured in parts per million and it is a dimensionless quantity.

Answer 12

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Answer 13

Expert Solution & Answer

Answer 14

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Answer 15

Ch. 13.5A - In a 300-MHz spectrometer, the protons in...Ch. 13.5B - Prob. 13.2P Ch. 13.6 - Determine the number of different kinds of protons...Ch. 13.6 - Prob. 13.4P Ch. 13.7 - Draw the integral trace expected for the NMR...Ch. 13.7 - Prob. 13.6P Ch. 13.8C - Draw the NMR spectra you would expect for the...Ch. 13.8D - Draw the NMR spectra you expect for the following...Ch. 13.8D - a. Assign protons to the peaks in the NMR spectrum...Ch. 13.8D - Prob. 13.10P

Solution Summary: The author explains the chemical shift of the given protons of iodomethane is to be calculated by the formula, Chemical

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Chapter 13 Solutions