The structure of two products. Interpretation: The structure of two products is to be stated. Concept introduction: The chemical reaction which proceeds through the formation of radicals is known as chain reaction. It involves three steps, initiation, propagation and termination. Generally, the initiation step occurs in the presence of light. The quantum yield of chain reactions is very high.

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Answer 1

Question

Chapter 15.7, Problem 15.9P

(a)

Interpretation Introduction

To determine: The structure of two products.

Interpretation: The structure of two products is to be stated.

Concept introduction: The chemical reaction which proceeds through the formation of radicals is known as chain reaction. It involves three steps, initiation, propagation and termination. Generally, the initiation step occurs in the presence of light. The quantum yield of chain reactions is very high.

(b)

Interpretation Introduction

To determine: A mechanism to account for the formation of two products.

Interpretation: A mechanism to account for the formation of two products is to be stated.

Concept introduction: The chemical reaction which proceeds through the formation of radicals is known as chain reaction. It involves three steps, initiation, propagation and termination. Generally, the initiation step occurs in the presence of light. The quantum yield of chain reactions is very high.

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(a 4 shows scanning electron microscope (SEM) images of extruded actions of packing bed for two capillary columns of different diameters, al 750 (bottom image) and b) 30-μm-i.d. Both columns are packed with the same stationary phase, spherical particles with 1-um diameter. A) When the columns were prepared, the figure shows that the column with the larger diameter has more packing irregularities. Explain this observation. B) Predict what affect this should have on band broadening and discuss your prediction using the van Deemter terms. C) Does this figure support your explanations in application question 33? Explain why or why not and make any changes in your answers in light of this figure. Figure 4 SEM images of sections of packed columns for a) 750 and b) 30-um-i.d. capillary columns.³

fcrip = ↓ bandwidth Il temp 32. What impact (increase, decrease, or no change) does each of the following conditions have on the individual components of the van Deemter equation and consequently, band broadening? Increase temperature Longer column Using a gas mobile phase instead of liquid Smaller particle stationary phase Multiple Paths Diffusion Mass Transfer

34. Figure 3 shows Van Deemter plots for a solute molecule using different column inner diameters (i.d.). A) Predict whether decreasing the column inner diameters increase or decrease bandwidth. B) Predict which van Deemter equation coefficient (A, B, or C) has the greatest effect on increasing or decreasing bandwidth as a function of i.d. and justify your answer. Figure 3 Van Deemter plots for hydroquinone using different column inner diameters (i.d. in μm). The data was obtained from liquid chromatography experiments using fused-silica capillary columns packed with 1.0-μm particles. 35 20 H(um) 큰 20 15 90 0+ 1500 100 75 550 01 02 594 05 μ(cm/sec) 30 15 10

Answer 2

Question

Chapter 15.7, Problem 15.9P

(a)

Interpretation Introduction

To determine: The structure of two products.

Interpretation: The structure of two products is to be stated.

Concept introduction: The chemical reaction which proceeds through the formation of radicals is known as chain reaction. It involves three steps, initiation, propagation and termination. Generally, the initiation step occurs in the presence of light. The quantum yield of chain reactions is very high.

(b)

Interpretation Introduction

To determine: A mechanism to account for the formation of two products.

Interpretation: A mechanism to account for the formation of two products is to be stated.

Concept introduction: The chemical reaction which proceeds through the formation of radicals is known as chain reaction. It involves three steps, initiation, propagation and termination. Generally, the initiation step occurs in the presence of light. The quantum yield of chain reactions is very high.

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Answer 3

Question

Chapter 15.7, Problem 15.9P

(a)

Interpretation Introduction

To determine: The structure of two products.

Interpretation: The structure of two products is to be stated.

Concept introduction: The chemical reaction which proceeds through the formation of radicals is known as chain reaction. It involves three steps, initiation, propagation and termination. Generally, the initiation step occurs in the presence of light. The quantum yield of chain reactions is very high.

(b)

Interpretation Introduction

To determine: A mechanism to account for the formation of two products.

Interpretation: A mechanism to account for the formation of two products is to be stated.

Concept introduction: The chemical reaction which proceeds through the formation of radicals is known as chain reaction. It involves three steps, initiation, propagation and termination. Generally, the initiation step occurs in the presence of light. The quantum yield of chain reactions is very high.

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Answer 4

Question

Chapter 15.7, Problem 15.9P

(a)

Interpretation Introduction

To determine: The structure of two products.

Interpretation: The structure of two products is to be stated.

Concept introduction: The chemical reaction which proceeds through the formation of radicals is known as chain reaction. It involves three steps, initiation, propagation and termination. Generally, the initiation step occurs in the presence of light. The quantum yield of chain reactions is very high.

(b)

Interpretation Introduction

To determine: A mechanism to account for the formation of two products.

Interpretation: A mechanism to account for the formation of two products is to be stated.

Concept introduction: The chemical reaction which proceeds through the formation of radicals is known as chain reaction. It involves three steps, initiation, propagation and termination. Generally, the initiation step occurs in the presence of light. The quantum yield of chain reactions is very high.

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Answer 5

Chapter 15.7, Problem 15.9P

(a)

Interpretation Introduction

To determine: The structure of two products.

Interpretation: The structure of two products is to be stated.

Concept introduction: The chemical reaction which proceeds through the formation of radicals is known as chain reaction. It involves three steps, initiation, propagation and termination. Generally, the initiation step occurs in the presence of light. The quantum yield of chain reactions is very high.

(b)

Interpretation Introduction

To determine: A mechanism to account for the formation of two products.

Interpretation: A mechanism to account for the formation of two products is to be stated.

Concept introduction: The chemical reaction which proceeds through the formation of radicals is known as chain reaction. It involves three steps, initiation, propagation and termination. Generally, the initiation step occurs in the presence of light. The quantum yield of chain reactions is very high.

Answer 6

Chapter 15.7, Problem 15.9P

(a)

Interpretation Introduction

To determine: The structure of two products.

Interpretation: The structure of two products is to be stated.

Concept introduction: The chemical reaction which proceeds through the formation of radicals is known as chain reaction. It involves three steps, initiation, propagation and termination. Generally, the initiation step occurs in the presence of light. The quantum yield of chain reactions is very high.

Answer 7

Chapter 15.7, Problem 15.9P

(a)

Interpretation Introduction

To determine: The structure of two products.

Interpretation: The structure of two products is to be stated.

Concept introduction: The chemical reaction which proceeds through the formation of radicals is known as chain reaction. It involves three steps, initiation, propagation and termination. Generally, the initiation step occurs in the presence of light. The quantum yield of chain reactions is very high.

Answer 8

(b)

Interpretation Introduction

To determine: A mechanism to account for the formation of two products.

Interpretation: A mechanism to account for the formation of two products is to be stated.

Concept introduction: The chemical reaction which proceeds through the formation of radicals is known as chain reaction. It involves three steps, initiation, propagation and termination. Generally, the initiation step occurs in the presence of light. The quantum yield of chain reactions is very high.

Answer 9

(b)

Interpretation Introduction

To determine: A mechanism to account for the formation of two products.

Interpretation: A mechanism to account for the formation of two products is to be stated.

Concept introduction: The chemical reaction which proceeds through the formation of radicals is known as chain reaction. It involves three steps, initiation, propagation and termination. Generally, the initiation step occurs in the presence of light. The quantum yield of chain reactions is very high.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 15.2 - Prob. 15.1P Ch. 15.2 - Prob. 15.2P Ch. 15.2 - Prob. 15.3P Ch. 15.4 - Prob. 15.4P Ch. 15.4 - Prob. 15.5P Ch. 15.5 - Treatment of an alkyl halide with AgNO3 in alcohol...Ch. 15.5 - Propose a mechanism for each reaction, showing...Ch. 15.6 - When Br2 is added to buta-1,3-diene at 15 C, the...Ch. 15.7 - Prob. 15.9P Ch. 15.7 - When N-bromosuccinimide is added to hex-1-ene in...

Solution Summary: The author explains that the chemical reaction which proceeds through the formation of radicals is known as chain reaction.

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