The mass required to prepare 1.00 L of 0 .105 M NaCl solution is to be calculated. Concept Introduction: There are many ways to determine the concentration of the solution. One of the most used methods is molarity. Molarity is be defined as the number of moles of the solute in one liter of the whole solution. Thus, the molarity can be calculated as: M = Moles of solute mole Total volume of solution L .

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

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Question

Chapter 15, Problem 51QAP

Interpretation Introduction

Interpretation:

The mass required to prepare 1.00 L of 0.105 M

NaCl solution is to be calculated.

Concept Introduction:

There are many ways to determine the concentration of the solution. One of the most used methods is molarity. Molarity is be defined as the number of moles of the solute in one liter of the whole solution. Thus, the molarity can be calculated as:

M=Moles of solute moleTotal volume of solution L.

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