The chemical shifts of each type of proton are 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 dimensionless quantity.

Question

5. A buffer consists of 0.45 M NH, and 0.25 M NH-CI (PK of NH 474) Calculate the pH of the butter. Ans: 9.52 BAS PH-9.26 +10g (10.95)) 14-4.59 PH=4.52 6. To 500 ml of the buffer on #5 a 0.20 g of sample of NaOH was added a Write the net ionic equation for the reaction which occurs b. Should the pH of the solution increase or decrease sightly? Calculate the pH of the buffer after the addition Ans: 9.54

Answer 1

Question

Chapter 13.9, Problem 13.15P

(a)

Interpretation Introduction

Interpretation:

The chemical shifts of each type of proton are 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 dimensionless quantity.

(b)

Interpretation Introduction

Interpretation:

The number of NMR peaks for each type of proton is to be determined.

Concept introduction:

NMR spectroscopy is a technique used to determine a unique structure of the compounds. It identifies the carbon-hydrogen bonding of an organic compound. A hydrogen atom is called as a proton in the NMR spectroscopy.

(c)

Interpretation Introduction

Interpretation:

The tree to show the splitting predicted for the absorption of the circled proton is to be drawn.

Concept introduction:

NMR spectroscopy is a technique used to determine a unique structure of the compounds. It identifies the carbon-hydrogen bonding of an organic compound. A hydrogen atom is called as a proton in the NMR spectroscopy.

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5. A buffer consists of 0.45 M NH, and 0.25 M NH-CI (PK of NH 474) Calculate the pH of the butter. Ans: 9.52 BAS PH-9.26 +10g (10.95)) 14-4.59 PH=4.52 6. To 500 ml of the buffer on #5 a 0.20 g of sample of NaOH was added a Write the net ionic equation for the reaction which occurs b. Should the pH of the solution increase or decrease sightly? Calculate the pH of the buffer after the addition Ans: 9.54

Explain the inductive effect (+I and -I) in benzene derivatives.

The inductive effect (+I and -I) in benzene derivatives, does it guide ortho, meta or para?

Answer 2

Question

Chapter 13.9, Problem 13.15P

(a)

Interpretation Introduction

Interpretation:

The chemical shifts of each type of proton are 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 dimensionless quantity.

(b)

Interpretation Introduction

Interpretation:

The number of NMR peaks for each type of proton is to be determined.

Concept introduction:

NMR spectroscopy is a technique used to determine a unique structure of the compounds. It identifies the carbon-hydrogen bonding of an organic compound. A hydrogen atom is called as a proton in the NMR spectroscopy.

(c)

Interpretation Introduction

Interpretation:

The tree to show the splitting predicted for the absorption of the circled proton is to be drawn.

Concept introduction:

NMR spectroscopy is a technique used to determine a unique structure of the compounds. It identifies the carbon-hydrogen bonding of an organic compound. A hydrogen atom is called as a proton in the NMR spectroscopy.

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Answer 3

Question

Chapter 13.9, Problem 13.15P

(a)

Interpretation Introduction

Interpretation:

The chemical shifts of each type of proton are 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 dimensionless quantity.

(b)

Interpretation Introduction

Interpretation:

The number of NMR peaks for each type of proton is to be determined.

Concept introduction:

NMR spectroscopy is a technique used to determine a unique structure of the compounds. It identifies the carbon-hydrogen bonding of an organic compound. A hydrogen atom is called as a proton in the NMR spectroscopy.

(c)

Interpretation Introduction

Interpretation:

The tree to show the splitting predicted for the absorption of the circled proton is to be drawn.

Concept introduction:

NMR spectroscopy is a technique used to determine a unique structure of the compounds. It identifies the carbon-hydrogen bonding of an organic compound. A hydrogen atom is called as a proton in the NMR spectroscopy.

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Answer 4

Question

Chapter 13.9, Problem 13.15P

(a)

Interpretation Introduction

Interpretation:

The chemical shifts of each type of proton are 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 dimensionless quantity.

(b)

Interpretation Introduction

Interpretation:

The number of NMR peaks for each type of proton is to be determined.

Concept introduction:

NMR spectroscopy is a technique used to determine a unique structure of the compounds. It identifies the carbon-hydrogen bonding of an organic compound. A hydrogen atom is called as a proton in the NMR spectroscopy.

(c)

Interpretation Introduction

Interpretation:

The tree to show the splitting predicted for the absorption of the circled proton is to be drawn.

Concept introduction:

NMR spectroscopy is a technique used to determine a unique structure of the compounds. It identifies the carbon-hydrogen bonding of an organic compound. A hydrogen atom is called as a proton in the NMR spectroscopy.

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Answer 5

Chapter 13.9, Problem 13.15P

(a)

Interpretation Introduction

Interpretation:

The chemical shifts of each type of proton are 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 dimensionless quantity.

(b)

Interpretation Introduction

Interpretation:

The number of NMR peaks for each type of proton is to be determined.

Concept introduction:

NMR spectroscopy is a technique used to determine a unique structure of the compounds. It identifies the carbon-hydrogen bonding of an organic compound. A hydrogen atom is called as a proton in the NMR spectroscopy.

(c)

Interpretation Introduction

Interpretation:

The tree to show the splitting predicted for the absorption of the circled proton is to be drawn.

Concept introduction:

NMR spectroscopy is a technique used to determine a unique structure of the compounds. It identifies the carbon-hydrogen bonding of an organic compound. A hydrogen atom is called as a proton in the NMR spectroscopy.

Answer 6

Chapter 13.9, Problem 13.15P

(a)

Interpretation Introduction

Interpretation:

The chemical shifts of each type of proton are 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 dimensionless quantity.

Answer 7

Chapter 13.9, Problem 13.15P

(a)

Interpretation Introduction

Interpretation:

The chemical shifts of each type of proton are 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 dimensionless quantity.

Answer 8

(b)

Interpretation Introduction

Interpretation:

The number of NMR peaks for each type of proton is to be determined.

Concept introduction:

NMR spectroscopy is a technique used to determine a unique structure of the compounds. It identifies the carbon-hydrogen bonding of an organic compound. A hydrogen atom is called as a proton in the NMR spectroscopy.

Answer 9

(b)

Interpretation Introduction

Interpretation:

The number of NMR peaks for each type of proton is to be determined.

Concept introduction:

NMR spectroscopy is a technique used to determine a unique structure of the compounds. It identifies the carbon-hydrogen bonding of an organic compound. A hydrogen atom is called as a proton in the NMR spectroscopy.

Answer 10

(c)

Interpretation Introduction

Interpretation:

The tree to show the splitting predicted for the absorption of the circled proton is to be drawn.

Concept introduction:

NMR spectroscopy is a technique used to determine a unique structure of the compounds. It identifies the carbon-hydrogen bonding of an organic compound. A hydrogen atom is called as a proton in the NMR spectroscopy.

Answer 11

(c)

Interpretation Introduction

Interpretation:

The tree to show the splitting predicted for the absorption of the circled proton is to be drawn.

Concept introduction:

NMR spectroscopy is a technique used to determine a unique structure of the compounds. It identifies the carbon-hydrogen bonding of an organic compound. A hydrogen atom is called as a proton in the NMR spectroscopy.

Answer 12

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Answer 23

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 that chemical shifts are measured in parts per million, and it is dimensionless quantity. NMR spectroscopy determines the carbon-hydrogen bonding of an organic compound.

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Chapter 13 Solutions