When the electrons are able to flow through the neighboring pi systems, the phenomenon of resonance takes place. Resonance structures are defined as the forms of a molecule having the same chemical connectivity, but the different distribution pattern for the electrons around the structure. To determine: The different resonance structures for the NCO − ion; prediction of the best Lewis structure on the basis of the formal charge.

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Answer 1

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Chapter 3, Problem 7ALQ

(a)

Interpretation Introduction

Concept introduction: When the electrons are able to flow through the neighboring pi systems, the phenomenon of resonance takes place. Resonance structures are defined as the forms of a molecule having the same chemical connectivity, but the different distribution pattern for the electrons around the structure.

To determine: The different resonance structures for the NCO− ion; prediction of the best Lewis structure on the basis of the formal charge.

(b)

Interpretation Introduction

Concept introduction: When the electrons are able to flow through the neighboring pi systems, the phenomenon of resonance takes place. Resonance structures are defined as the forms of a molecule having the same chemical connectivity, but the different distribution pattern for the electrons around the structure.

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1. Calculate the accurate monoisotopic mass (using all 1H, 12C, 14N, 160 and 35CI) for your product using the table in your lab manual. Don't include the Cl, since you should only have [M+H]*. Compare this to the value you see on the LC-MS printout. How much different are they? 2. There are four isotopic peaks for the [M+H]* ion at m/z 240, 241, 242 and 243. For one point of extra credit, explain what each of these is and why they are present. 3. There is a fragment ion at m/z 184. For one point of extra credit, identify this fragment and confirm by calculating the accurate monoisotopic mass. 4. The UV spectrum is also at the bottom of your printout. For one point of extra credit, look up the UV spectrum of bupropion on Google Images and compare to your spectrum. Do they match? Cite your source. 5. For most of you, there will be a second chromatographic peak whose m/z is 74 (to a round number). For one point of extra credit, see if you can identify this molecule as well and confirm by…

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can you draw each step on a piece of a paper please this is very confusing to me

Answer 2

Question

Chapter 3, Problem 7ALQ

(a)

Interpretation Introduction

Concept introduction: When the electrons are able to flow through the neighboring pi systems, the phenomenon of resonance takes place. Resonance structures are defined as the forms of a molecule having the same chemical connectivity, but the different distribution pattern for the electrons around the structure.

To determine: The different resonance structures for the NCO− ion; prediction of the best Lewis structure on the basis of the formal charge.

(b)

Interpretation Introduction

Concept introduction: When the electrons are able to flow through the neighboring pi systems, the phenomenon of resonance takes place. Resonance structures are defined as the forms of a molecule having the same chemical connectivity, but the different distribution pattern for the electrons around the structure.

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Answer 3

Question

Chapter 3, Problem 7ALQ

(a)

Interpretation Introduction

Concept introduction: When the electrons are able to flow through the neighboring pi systems, the phenomenon of resonance takes place. Resonance structures are defined as the forms of a molecule having the same chemical connectivity, but the different distribution pattern for the electrons around the structure.

To determine: The different resonance structures for the NCO− ion; prediction of the best Lewis structure on the basis of the formal charge.

(b)

Interpretation Introduction

Concept introduction: When the electrons are able to flow through the neighboring pi systems, the phenomenon of resonance takes place. Resonance structures are defined as the forms of a molecule having the same chemical connectivity, but the different distribution pattern for the electrons around the structure.

Expert Solution & Answer

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Answer 4

Question

Chapter 3, Problem 7ALQ

(a)

Interpretation Introduction

Concept introduction: When the electrons are able to flow through the neighboring pi systems, the phenomenon of resonance takes place. Resonance structures are defined as the forms of a molecule having the same chemical connectivity, but the different distribution pattern for the electrons around the structure.

To determine: The different resonance structures for the NCO− ion; prediction of the best Lewis structure on the basis of the formal charge.

(b)

Interpretation Introduction

Concept introduction: When the electrons are able to flow through the neighboring pi systems, the phenomenon of resonance takes place. Resonance structures are defined as the forms of a molecule having the same chemical connectivity, but the different distribution pattern for the electrons around the structure.

Expert Solution & Answer

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Answer 5

Chapter 3, Problem 7ALQ

(a)

Interpretation Introduction

Concept introduction: When the electrons are able to flow through the neighboring pi systems, the phenomenon of resonance takes place. Resonance structures are defined as the forms of a molecule having the same chemical connectivity, but the different distribution pattern for the electrons around the structure.

To determine: The different resonance structures for the NCO− ion; prediction of the best Lewis structure on the basis of the formal charge.

(b)

Interpretation Introduction

Concept introduction: When the electrons are able to flow through the neighboring pi systems, the phenomenon of resonance takes place. Resonance structures are defined as the forms of a molecule having the same chemical connectivity, but the different distribution pattern for the electrons around the structure.

Answer 6

Chapter 3, Problem 7ALQ

(a)

Interpretation Introduction

Concept introduction: When the electrons are able to flow through the neighboring pi systems, the phenomenon of resonance takes place. Resonance structures are defined as the forms of a molecule having the same chemical connectivity, but the different distribution pattern for the electrons around the structure.

To determine: The different resonance structures for the NCO− ion; prediction of the best Lewis structure on the basis of the formal charge.

Answer 7

Chapter 3, Problem 7ALQ

(a)

Interpretation Introduction

Concept introduction: When the electrons are able to flow through the neighboring pi systems, the phenomenon of resonance takes place. Resonance structures are defined as the forms of a molecule having the same chemical connectivity, but the different distribution pattern for the electrons around the structure.

To determine: The different resonance structures for the NCO− ion; prediction of the best Lewis structure on the basis of the formal charge.

Answer 8

(b)

Interpretation Introduction

Concept introduction: When the electrons are able to flow through the neighboring pi systems, the phenomenon of resonance takes place. Resonance structures are defined as the forms of a molecule having the same chemical connectivity, but the different distribution pattern for the electrons around the structure.

Answer 9

(b)

Interpretation Introduction

Concept introduction: When the electrons are able to flow through the neighboring pi systems, the phenomenon of resonance takes place. Resonance structures are defined as the forms of a molecule having the same chemical connectivity, but the different distribution pattern for the electrons around the structure.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 3 - Distinguish between the terms electronegativity...Ch. 3 - Prob. 2RQ Ch. 3 - When an element forms an anion, what happens to...Ch. 3 - Define the term lattice energy. Why,...Ch. 3 - Explain how bond energies can be used to estimate...Ch. 3 - Prob. 6RQ Ch. 3 - Prob. 7RQ Ch. 3 - Explain the terms resonance and delocalized...Ch. 3 - Define formal charge and explain how to calculate...Ch. 3 - The compounds AlCl3, CrCl3, and ICl3 have similar...

Solution Summary: The author explains the resonance structures for the NCO- ion.

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