The molecules of water that are required to carry over 1 molecule of iodobenzene are to be calculated. Also, the mass of water per gram of iodobenzene is to be calculated. Concept introduction: Steam distillation is used to extract and purify the temperature-sensitive compounds. Steam distillation is generally used for organic compounds that are sensitive to temperature. The advantage of steam distillation is that the temperature-sensitive compounds can be boiled and extracted at a lower temperature without decomposition. Dalton law states that in a mixture of non-reacting gases the total pressure exerted by the mixture is equal to the summation of the partial pressure of individual gases present in the mixture.

Question

(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

Answer 1

Question

Chapter 6, Problem 3Q

Interpretation Introduction

Interpretation:

The molecules of water that are required to carry over 1 molecule of iodobenzene are to be calculated. Also, the mass of water per gram of iodobenzene is to be calculated.

Concept introduction:

Steam distillation is used to extract and purify the temperature-sensitive compounds. Steam distillation is generally used for organic compounds that are sensitive to temperature. The advantage of steam distillation is that the temperature-sensitive compounds can be boiled and extracted at a lower temperature without decomposition.

Dalton law states that in a mixture of non-reacting gases the total pressure exerted by the mixture is equal to the summation of the partial pressure of individual gases present in the mixture.

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