Introductory Chemistry: Concepts and Critical Thinking (8th Edition)
Introductory Chemistry: Concepts and Critical Thinking (8th Edition)
8th Edition
ISBN: 9780134421377
Author: Charles H Corwin
Publisher: PEARSON
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Chapter 15, Problem 29E
Interpretation Introduction

(a)

Interpretation:

The mass of Carbon dioxide produced in the reaction is to be stated.

Concept introduction:

The insufficient supply of oxygen lead to the formation of Carbon monoxide but in the sufficient supply of oxygen coal burns to form carbon dioxide and it is highly exothermic reaction.

Interpretation Introduction

(b)

Interpretation:

The volume of carbon dioxide produced at STP in the reaction is to be stated.

Concept introduction:

The insufficient supply of oxygen lead to the formation of Carbon monoxide but in the sufficient supply of oxygen coal burns to form carbon dioxide and it is highly exothermic reaction.

Interpretation Introduction

(c)

Interpretation:

The mass of oxygen consumed in the reaction is to be stated.

Concept introduction:

The insufficient supply of oxygen lead to the formation of Carbon monoxide but in the sufficient supply of oxygen coal burns to form carbon dioxide and it is highly exothermic reaction.

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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
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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

Chapter 15 Solutions

Introductory Chemistry: Concepts and Critical Thinking (8th Edition)

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