(a) Interpretation: The formula of a compound that can produce the given mass spectrum is to be determined. Concept introduction: The mass spectrum of a compound is often represented as a bar graph with m/z on the x axis (where m is in atomic mass units, u) and the relative abundance of ions at each m/z on the y axis. The mass of each ion is just the mass of the atoms that make it up. The M + peak of a mass spectrum is taken to be the compound’s molecular mass. From the ratio of the M + and M + 1 peak intensities, the number of carbon atoms is calculated. The masses of the C atoms and the heteroatoms are subtracted from the molecular mass. The remaining mass reasonably is made up by hydrogens. If that number of H atoms is unreasonably high, then consider adding another non-hydrogen atom to the formula.

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Answer 1

Question

Chapter 16, Problem 16.76P

Interpretation Introduction

(a)

Interpretation:

The formula of a compound that can produce the given mass spectrum is to be determined.

Concept introduction:

The mass spectrum of a compound is often represented as a bar graph with m/z on the x axis (where m is in atomic mass units, u) and the relative abundance of ions at each m/z on the y axis. The mass of each ion is just the mass of the atoms that make it up. The M+ peak of a mass spectrum is taken to be the compound’s molecular mass. From the ratio of the M+ and M + 1 peak intensities, the number of carbon atoms is calculated. The masses of the C atoms and the heteroatoms are subtracted from the molecular mass. The remaining mass reasonably is made up by hydrogens. If that number of H atoms is unreasonably high, then consider adding another non-hydrogen atom to the formula.

Interpretation Introduction

(b)

Interpretation:

The formula of a compound that can produce the given mass spectrum is to be determined.

Concept introduction:

The mass spectrum of a compound is often represented as a bar graph with m/z on the x axis (where m is in atomic mass units, u) and the relative abundance of ions at each m/z on the y axis. The mass of each ion is just the mass of the atoms that make it up. The M+ peak of a mass spectrum is taken to be the compound’s molecular mass. From the ratio of the M+ and M + 1 peak intensities, the number of carbon atoms is calculated. The masses of the C atoms and the heteroatoms are subtracted from the molecular mass. The remaining mass reasonably is made up by hydrogens. If that number of H atoms is unreasonably high, then consider adding another non-hydrogen atom to the formula.

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Part 111. 1 H-NMR spectrum of a compound with integration values in red is given below. Answer the following: (a) write the signals in the 'H-NMR spectrum to the corresponding protons on the structure of the molecule below. (b) Identify the theoretical multiplicities for each proton in the compound. Also give the possible. complex splitting patterns assuming J values are not similar. там Br 22 2 3 6 4 7.2 7.0 6.8 6.6 6.4 6.2 6.0 5.8 5.6 5.4 5.2 5.0 4.8 4.6 4.4 4.2 4.0 3.8 3.6 3.4 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0 Chemical Shift (ppm) ra. Br 2 3 6 6 2.5 2.4 2.3 2.2 2.1 2.0 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 0.8 Chemical Shift (ppm) 2 2 Br 7.3 7.2 7.1 7.0 6.9 6.7 6.6 6.5 6.4 6.3 6.2 6.1 6.0 Chemical Shift (ppm) 5.9 5.8 5.7 5.5 5.4 5.3 5.2 5.0 4.9

1600° 1538°C 1493°C In the diagram, the letter L indicates that it is a liquid. Indicate its components in the upper region where only L is indicated. The iron-iron carbide phase diagram. Temperature (°C) 1400 8 1394°C y+L 1200 2.14 y, Austenite 10000 912°C 800a 0.76 0.022 600 400 (Fe) a, Ferrite Composition (at% C) 15 1147°C a + Fe3C 2 3 Composition (wt% C) L 2500 4.30 2000 y + Fe3C 727°C 1500 Cementite (Fe3C) 1000 4 5 6 6.70 Temperature (°F)

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Answer 2

Question

Chapter 16, Problem 16.76P

Interpretation Introduction

(a)

Interpretation:

The formula of a compound that can produce the given mass spectrum is to be determined.

Concept introduction:

The mass spectrum of a compound is often represented as a bar graph with m/z on the x axis (where m is in atomic mass units, u) and the relative abundance of ions at each m/z on the y axis. The mass of each ion is just the mass of the atoms that make it up. The M+ peak of a mass spectrum is taken to be the compound’s molecular mass. From the ratio of the M+ and M + 1 peak intensities, the number of carbon atoms is calculated. The masses of the C atoms and the heteroatoms are subtracted from the molecular mass. The remaining mass reasonably is made up by hydrogens. If that number of H atoms is unreasonably high, then consider adding another non-hydrogen atom to the formula.

Interpretation Introduction

(b)

Interpretation:

The formula of a compound that can produce the given mass spectrum is to be determined.

Concept introduction:

The mass spectrum of a compound is often represented as a bar graph with m/z on the x axis (where m is in atomic mass units, u) and the relative abundance of ions at each m/z on the y axis. The mass of each ion is just the mass of the atoms that make it up. The M+ peak of a mass spectrum is taken to be the compound’s molecular mass. From the ratio of the M+ and M + 1 peak intensities, the number of carbon atoms is calculated. The masses of the C atoms and the heteroatoms are subtracted from the molecular mass. The remaining mass reasonably is made up by hydrogens. If that number of H atoms is unreasonably high, then consider adding another non-hydrogen atom to the formula.

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Answer 3

Question

Chapter 16, Problem 16.76P

Interpretation Introduction

(a)

Interpretation:

The formula of a compound that can produce the given mass spectrum is to be determined.

Concept introduction:

The mass spectrum of a compound is often represented as a bar graph with m/z on the x axis (where m is in atomic mass units, u) and the relative abundance of ions at each m/z on the y axis. The mass of each ion is just the mass of the atoms that make it up. The M+ peak of a mass spectrum is taken to be the compound’s molecular mass. From the ratio of the M+ and M + 1 peak intensities, the number of carbon atoms is calculated. The masses of the C atoms and the heteroatoms are subtracted from the molecular mass. The remaining mass reasonably is made up by hydrogens. If that number of H atoms is unreasonably high, then consider adding another non-hydrogen atom to the formula.

Interpretation Introduction

(b)

Interpretation:

The formula of a compound that can produce the given mass spectrum is to be determined.

Concept introduction:

The mass spectrum of a compound is often represented as a bar graph with m/z on the x axis (where m is in atomic mass units, u) and the relative abundance of ions at each m/z on the y axis. The mass of each ion is just the mass of the atoms that make it up. The M+ peak of a mass spectrum is taken to be the compound’s molecular mass. From the ratio of the M+ and M + 1 peak intensities, the number of carbon atoms is calculated. The masses of the C atoms and the heteroatoms are subtracted from the molecular mass. The remaining mass reasonably is made up by hydrogens. If that number of H atoms is unreasonably high, then consider adding another non-hydrogen atom to the formula.

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Answer 4

Question

Chapter 16, Problem 16.76P

Interpretation Introduction

(a)

Interpretation:

The formula of a compound that can produce the given mass spectrum is to be determined.

Concept introduction:

The mass spectrum of a compound is often represented as a bar graph with m/z on the x axis (where m is in atomic mass units, u) and the relative abundance of ions at each m/z on the y axis. The mass of each ion is just the mass of the atoms that make it up. The M+ peak of a mass spectrum is taken to be the compound’s molecular mass. From the ratio of the M+ and M + 1 peak intensities, the number of carbon atoms is calculated. The masses of the C atoms and the heteroatoms are subtracted from the molecular mass. The remaining mass reasonably is made up by hydrogens. If that number of H atoms is unreasonably high, then consider adding another non-hydrogen atom to the formula.

Interpretation Introduction

(b)

Interpretation:

The formula of a compound that can produce the given mass spectrum is to be determined.

Concept introduction:

The mass spectrum of a compound is often represented as a bar graph with m/z on the x axis (where m is in atomic mass units, u) and the relative abundance of ions at each m/z on the y axis. The mass of each ion is just the mass of the atoms that make it up. The M+ peak of a mass spectrum is taken to be the compound’s molecular mass. From the ratio of the M+ and M + 1 peak intensities, the number of carbon atoms is calculated. The masses of the C atoms and the heteroatoms are subtracted from the molecular mass. The remaining mass reasonably is made up by hydrogens. If that number of H atoms is unreasonably high, then consider adding another non-hydrogen atom to the formula.

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Answer 5

Chapter 16, Problem 16.76P

Interpretation Introduction

(a)

Interpretation:

The formula of a compound that can produce the given mass spectrum is to be determined.

Concept introduction:

The mass spectrum of a compound is often represented as a bar graph with m/z on the x axis (where m is in atomic mass units, u) and the relative abundance of ions at each m/z on the y axis. The mass of each ion is just the mass of the atoms that make it up. The M+ peak of a mass spectrum is taken to be the compound’s molecular mass. From the ratio of the M+ and M + 1 peak intensities, the number of carbon atoms is calculated. The masses of the C atoms and the heteroatoms are subtracted from the molecular mass. The remaining mass reasonably is made up by hydrogens. If that number of H atoms is unreasonably high, then consider adding another non-hydrogen atom to the formula.

Interpretation Introduction

(b)

Interpretation:

The formula of a compound that can produce the given mass spectrum is to be determined.

Concept introduction:

The mass spectrum of a compound is often represented as a bar graph with m/z on the x axis (where m is in atomic mass units, u) and the relative abundance of ions at each m/z on the y axis. The mass of each ion is just the mass of the atoms that make it up. The M+ peak of a mass spectrum is taken to be the compound’s molecular mass. From the ratio of the M+ and M + 1 peak intensities, the number of carbon atoms is calculated. The masses of the C atoms and the heteroatoms are subtracted from the molecular mass. The remaining mass reasonably is made up by hydrogens. If that number of H atoms is unreasonably high, then consider adding another non-hydrogen atom to the formula.

Answer 6

Chapter 16, Problem 16.76P

Interpretation Introduction

(a)

Interpretation:

The formula of a compound that can produce the given mass spectrum is to be determined.

Concept introduction:

The mass spectrum of a compound is often represented as a bar graph with m/z on the x axis (where m is in atomic mass units, u) and the relative abundance of ions at each m/z on the y axis. The mass of each ion is just the mass of the atoms that make it up. The M+ peak of a mass spectrum is taken to be the compound’s molecular mass. From the ratio of the M+ and M + 1 peak intensities, the number of carbon atoms is calculated. The masses of the C atoms and the heteroatoms are subtracted from the molecular mass. The remaining mass reasonably is made up by hydrogens. If that number of H atoms is unreasonably high, then consider adding another non-hydrogen atom to the formula.

Answer 7

Chapter 16, Problem 16.76P

Interpretation Introduction

(a)

Interpretation:

The formula of a compound that can produce the given mass spectrum is to be determined.

Concept introduction:

The mass spectrum of a compound is often represented as a bar graph with m/z on the x axis (where m is in atomic mass units, u) and the relative abundance of ions at each m/z on the y axis. The mass of each ion is just the mass of the atoms that make it up. The M+ peak of a mass spectrum is taken to be the compound’s molecular mass. From the ratio of the M+ and M + 1 peak intensities, the number of carbon atoms is calculated. The masses of the C atoms and the heteroatoms are subtracted from the molecular mass. The remaining mass reasonably is made up by hydrogens. If that number of H atoms is unreasonably high, then consider adding another non-hydrogen atom to the formula.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The formula of a compound that can produce the given mass spectrum is to be determined.

Concept introduction:

The mass spectrum of a compound is often represented as a bar graph with m/z on the x axis (where m is in atomic mass units, u) and the relative abundance of ions at each m/z on the y axis. The mass of each ion is just the mass of the atoms that make it up. The M+ peak of a mass spectrum is taken to be the compound’s molecular mass. From the ratio of the M+ and M + 1 peak intensities, the number of carbon atoms is calculated. The masses of the C atoms and the heteroatoms are subtracted from the molecular mass. The remaining mass reasonably is made up by hydrogens. If that number of H atoms is unreasonably high, then consider adding another non-hydrogen atom to the formula.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The formula of a compound that can produce the given mass spectrum is to be determined.

Concept introduction:

The mass spectrum of a compound is often represented as a bar graph with m/z on the x axis (where m is in atomic mass units, u) and the relative abundance of ions at each m/z on the y axis. The mass of each ion is just the mass of the atoms that make it up. The M+ peak of a mass spectrum is taken to be the compound’s molecular mass. From the ratio of the M+ and M + 1 peak intensities, the number of carbon atoms is calculated. The masses of the C atoms and the heteroatoms are subtracted from the molecular mass. The remaining mass reasonably is made up by hydrogens. If that number of H atoms is unreasonably high, then consider adding another non-hydrogen atom to the formula.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 16 - Prob. 16.1P Ch. 16 - Prob. 16.2P Ch. 16 - Prob. 16.3P Ch. 16 - Prob. 16.4P Ch. 16 - Prob. 16.5P Ch. 16 - Prob. 16.6P Ch. 16 - Prob. 16.7P Ch. 16 - Prob. 16.8P Ch. 16 - Prob. 16.9P Ch. 16 - Prob. 16.10P

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