After reduction, the three methods used to purify metals have to be listed and described.

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Chapter 19, Problem 19.8QE

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Interpretation:

After reduction, the three methods used to purify metals have to be listed and described.

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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 19, Problem 19.8QE

Interpretation Introduction

Interpretation:

After reduction, the three methods used to purify metals have to be listed and described.

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Answer 3

Question

Chapter 19, Problem 19.8QE

Interpretation Introduction

Interpretation:

After reduction, the three methods used to purify metals have to be listed and described.

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Answer 4

Question

Chapter 19, Problem 19.8QE

Interpretation Introduction

Interpretation:

After reduction, the three methods used to purify metals have to be listed and described.

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Answer 5

Chapter 19, Problem 19.8QE

Interpretation Introduction

Interpretation:

After reduction, the three methods used to purify metals have to be listed and described.

Answer 6

Chapter 19, Problem 19.8QE

Interpretation Introduction

Interpretation:

After reduction, the three methods used to purify metals have to be listed and described.

Answer 7

Chapter 19, Problem 19.8QE

Interpretation Introduction

Interpretation:

After reduction, the three methods used to purify metals have to be listed and described.

Answer 8

Expert Solution & Answer

Answer 9

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Answer 11

Ch. 19 - Prob. 19.1QE Ch. 19 - Prob. 19.2QE Ch. 19 - Prob. 19.3QE Ch. 19 - Prob. 19.4QE Ch. 19 - Prob. 19.5QE Ch. 19 - Prob. 19.6QE Ch. 19 - Prob. 19.7QE Ch. 19 - Prob. 19.8QE Ch. 19 - Prob. 19.9QE Ch. 19 - Prob. 19.10QE

After reduction, the three methods used to purify metals have to be listed and described.

Solution Summary: The author explains the three methods used to purify metals after reduction: distillation, electrolysis, and zone refining.

Interpretation:

After reduction, the three methods used to purify metals have to be listed and described.

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Chapter 19 Solutions

After reduction, the three methods used to purify metals have to be listed and described.

Solution Summary: The author explains the three methods used to purify metals after reduction: distillation, electrolysis, and zone refining.

Interpretation: After reduction, the three methods used to purify metals have to be listed and described.

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Chapter 19 Solutions

Interpretation:

After reduction, the three methods used to purify metals have to be listed and described.