(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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5 What would the complete ionic reaction be if aqueous solutions of potassium sulfate and barium acetate were mixed? ed of Select one: O a 2 K SO4 + Ba2 +2 C₂H3O21 K+SO4 + Ba2+ + 2 C2H3O21 K+SO42 + Ba2 +2 C2H3O2 BaSO4 +2 K+ + 2 C2H3O estion Ob. O c. Od. 2 K SO4 +Ba2 +2 C₂H₂O₂ BaSO4 + K+ + 2 C2H3O BaSO4 + K + 2 C2H301 →Ba² +SO42 +2 KC2H3O s page

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LTS Solid: AT=Te-Ti Trial 1 Trial 2 Trial 3 Average ΔΗ Mass water, g 24.096 23.976 23.975 Moles of solid, mol 0.01763 001767 0101781 Temp. change, °C 2.9°C 11700 2.0°C Heat of reaction, J -292.37J -170.473 -193.26J AH, kJ/mole 16.58K 9.647 kJ 10.85 kr 16.58K59.64701 KJ mol 12.35k Minimum AS, J/mol K 41.582 mol-k Remember: q = mCsAT (m = mass of water, Cs=4.184J/g°C) & qsin =-qrxn & Show your calculations for: AH in J and then in kJ/mole for Trial 1: qa (24.0969)(4.1845/g) (-2.9°C)=-292.37J qsin = qrxn = 292.35 292.37J AH in J = 292.375 0.2923kJ 0.01763m01 =1.65×107 AH in kJ/mol = = 16.58K 0.01763mol mol qrx Minimum AS in J/mol K (Hint: use the average initial temperature of the three trials, con Kelvin.) AS=AHIT (1.65×10(9.64×103) + (1.0 Jimai

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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Chapter 16 Solutions