The wavelengths of two peaks in the u-v spectrum of beta-carotene should be given and peak which represents the more energetic electron transition also has to be identified.

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Chapter 7, Problem 66QRT

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The wavelengths of two peaks in the u-v spectrum of beta-carotene should be given and peak which represents the more energetic electron transition also has to be identified.

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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 7, Problem 66QRT

Interpretation Introduction

Interpretation:

The wavelengths of two peaks in the u-v spectrum of beta-carotene should be given and peak which represents the more energetic electron transition also has to be identified.

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Answer 3

Question

Chapter 7, Problem 66QRT

Interpretation Introduction

Interpretation:

The wavelengths of two peaks in the u-v spectrum of beta-carotene should be given and peak which represents the more energetic electron transition also has to be identified.

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Answer 4

Question

Chapter 7, Problem 66QRT

Interpretation Introduction

Interpretation:

The wavelengths of two peaks in the u-v spectrum of beta-carotene should be given and peak which represents the more energetic electron transition also has to be identified.

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Answer 5

Chapter 7, Problem 66QRT

Interpretation Introduction

Interpretation:

The wavelengths of two peaks in the u-v spectrum of beta-carotene should be given and peak which represents the more energetic electron transition also has to be identified.

Answer 6

Chapter 7, Problem 66QRT

Interpretation Introduction

Interpretation:

The wavelengths of two peaks in the u-v spectrum of beta-carotene should be given and peak which represents the more energetic electron transition also has to be identified.

Answer 7

Chapter 7, Problem 66QRT

Interpretation Introduction

Interpretation:

The wavelengths of two peaks in the u-v spectrum of beta-carotene should be given and peak which represents the more energetic electron transition also has to be identified.

Answer 8

Expert Solution & Answer

Answer 9

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Answer 11

Ch. 7.2 - Identify the electron-region geometry, the...Ch. 7.2 - Based on the discussion so far, identify a...Ch. 7.2 - Prob. 7.2PSP Ch. 7.2 - Determine the electron-region geometry and the...Ch. 7.2 - Prob. 7.2CE Ch. 7.2 - Prob. 7.3E Ch. 7.2 - Prob. 7.4PSP Ch. 7.4 - Using hybridization and sigma and pi bonding,...Ch. 7.4 - Prob. 7.4CE Ch. 7.5 - Decide whether each molecule is polar and, if so,...

The wavelengths of two peaks in the u-v spectrum of beta-carotene should be given and peak which represents the more energetic electron transition also has to be identified.

Solution Summary: The author explains the wavelengths of two peaks in the u-v spectrum of beta-carotene and the peak which represents the more energetic electron transition.

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Interpretation:

The wavelengths of two peaks in the u-v spectrum of beta-carotene should be given and peak which represents the more energetic electron transition also has to be identified.

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Chapter 7 Solutions

The wavelengths of two peaks in the u-v spectrum of beta-carotene should be given and peak which represents the more energetic electron transition also has to be identified.

Solution Summary: The author explains the wavelengths of two peaks in the u-v spectrum of beta-carotene and the peak which represents the more energetic electron transition.

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Interpretation: The wavelengths of two peaks in the u-v spectrum of beta-carotene should be given and peak which represents the more energetic electron transition also has to be identified.

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Chapter 7 Solutions

Interpretation:

The wavelengths of two peaks in the u-v spectrum of beta-carotene should be given and peak which represents the more energetic electron transition also has to be identified.