Masteringchemistry With Pearson Etext -- Valuepack Access Card -- For Principles Of Chemistry: A Molecular Approach
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ISBN: 9780133890686
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Chapter 4, Problem 3E
Interpretation Introduction
Interpretation: Whether the percent yield would be different or same when the actual; yield and theoretical yield are taken in the units of amount (or moles).
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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
Chapter 4 Solutions
Masteringchemistry With Pearson Etext -- Valuepack Access Card -- For Principles Of Chemistry: A Molecular Approach
Ch. 4 - Prob. 1SAQCh. 4 - Q2. Sodium and chlorine react to form sodium...Ch. 4 - Prob. 3SAQCh. 4 - Prob. 4SAQCh. 4 - Prob. 5SAQCh. 4 - Prob. 6SAQCh. 4 - Prob. 7SAQCh. 4 - Prob. 8SAQCh. 4 - Prob. 9SAQCh. 4 - Q10. What is the net ionic equation for the...
Ch. 4 - Q11. What is the net ionic equation for the...Ch. 4 - Q12. What is the net ionic equation for the...Ch. 4 - Prob. 13SAQCh. 4 - Prob. 14SAQCh. 4 - Prob. 15SAQCh. 4 - 1. What is reaction stoichiometry? What is the...Ch. 4 - Prob. 2ECh. 4 - Prob. 3ECh. 4 - Prob. 4ECh. 4 - 5. What is molarity? How is it useful?
Ch. 4 - 6. Explain how a strong electrolyte, a weak...Ch. 4 - 7. Explain the difference between a strong acid...Ch. 4 - Prob. 8ECh. 4 - Prob. 9ECh. 4 - Prob. 10ECh. 4 - Prob. 11ECh. 4 - Prob. 12ECh. 4 - Prob. 13ECh. 4 - Prob. 14ECh. 4 - 15. What is an acid–base reaction? Give an...Ch. 4 - 16. Explain the principles behind an acid–base...Ch. 4 - 17. What is a gas-evolution reaction? Give an...Ch. 4 - 18. What reactant types give rise to gas-evolution...Ch. 4 - Prob. 19ECh. 4 - Prob. 20ECh. 4 - Prob. 21ECh. 4 - Prob. 22ECh. 4 - 23. In a redox reaction, which reactant is the...Ch. 4 - Prob. 24ECh. 4 - Prob. 25ECh. 4 - Prob. 26ECh. 4 - 27. Calculate how many moles of NO2 form when each...Ch. 4 - 28. Calculate how many moles of NH3 form when each...Ch. 4 - Prob. 29ECh. 4 - Prob. 30ECh. 4 - Prob. 31ECh. 4 - Prob. 32ECh. 4 - 33. For each of the reactions, calculate the mass...Ch. 4 - 34. For each of the reactions, calculate the mass...Ch. 4 - 35. For each of the acid–base reactions, calculate...Ch. 4 - Prob. 36ECh. 4 - 37. Find theFor the following reaction, determine ...Ch. 4 - 38. Find the limiting reactant for each initial...Ch. 4 - Prob. 39ECh. 4 - Prob. 40ECh. 4 - Prob. 41ECh. 4 - 42. Calculate the theoretical yield of product (in...Ch. 4 - Zinc sulfide reacts with oxygen according to the...Ch. 4 - 44. Iron(II) sulfide reacts with hydrochloric acid...Ch. 4 - Prob. 45ECh. 4 - Prob. 46ECh. 4 - 47. Iron(III) oxide reacts with carbon monoxide...Ch. 4 - 48. Elemental phosphorus reacts with chlorine gas...Ch. 4 - 49. Lead ions can be precipitated from solution...Ch. 4 - Prob. 50ECh. 4 - Prob. 51ECh. 4 - Prob. 52ECh. 4 - 53. Calculate the molarity of each solution.
a....Ch. 4 - Prob. 54ECh. 4 - 55. What is the molarity of NO3– in each...Ch. 4 - Prob. 56ECh. 4 - Prob. 57ECh. 4 - 58. What volume of 0.200 M ethanol solution...Ch. 4 - Prob. 59ECh. 4 - Prob. 60ECh. 4 - 61. If 123 mL of a 1.1 M glucose solution is...Ch. 4 - 62. If 3.5 L of a 4.8 M SrCl2 solution is diluted...Ch. 4 - 63. To what volume should you dilute 50.0 mL of a...Ch. 4 - 64. To what volume should you dilute 25 mL of a...Ch. 4 - Prob. 65ECh. 4 - 66. Consider the reaction:
Li2S(aq) + Co(NO3)2(aq)...Ch. 4 - 67. What is the minimum amount of 6.0 M H2SO4...Ch. 4 - Prob. 68ECh. 4 - 69. A 25.0-mL sample of a 1.20 M potassium...Ch. 4 - Prob. 70ECh. 4 - Prob. 71ECh. 4 - Prob. 72ECh. 4 - Prob. 73ECh. 4 - Prob. 74ECh. 4 - Prob. 75ECh. 4 - 76. Complete and balance each equation. If no...Ch. 4 - Write a molecular equation for the precipitation...Ch. 4 - 78. Write a molecular equation for the...Ch. 4 - Prob. 79ECh. 4 - 80. Write balanced complete ionic and net ionic...Ch. 4 - Prob. 81ECh. 4 - Prob. 82ECh. 4 - 83. Write balanced molecular and net ionic...Ch. 4 - Prob. 84ECh. 4 - Prob. 85ECh. 4 - Prob. 86ECh. 4 - Prob. 87ECh. 4 - 90. A 30.00-mL sample of an unknown H3PO4 solution...Ch. 4 - Prob. 89ECh. 4 - Prob. 90ECh. 4 - Prob. 91ECh. 4 - Prob. 92ECh. 4 - Prob. 93ECh. 4 - Prob. 94ECh. 4 - Prob. 95ECh. 4 - Prob. 96ECh. 4 - Prob. 97ECh. 4 - Prob. 98ECh. 4 - Prob. 99ECh. 4 - Prob. 100ECh. 4 - 103. People sometimes use sodium bicarbonate as an...Ch. 4 - 104. Toilet bowl cleaners often contain...Ch. 4 - Prob. 103ECh. 4 - Many home barbeques are fueled with propane gas...Ch. 4 - Prob. 105ECh. 4 - Prob. 106ECh. 4 - Prob. 107ECh. 4 - 110. A hydrochloric acid solution will neutralize...Ch. 4 - 111. Predict the products and write a balanced...Ch. 4 - 112. Predict the products and write a balanced...Ch. 4 - Prob. 111ECh. 4 - Prob. 112ECh. 4 - Prob. 113ECh. 4 - Prob. 114ECh. 4 - 117. The nitrogen in sodium nitrate and in...Ch. 4 - 118. Find the volume of 0.110 M hydrochloric acid...Ch. 4 - Prob. 117ECh. 4 - 120. We prepare a solution by mixing 0.10 L of...Ch. 4 - Prob. 119ECh. 4 - Prob. 120ECh. 4 - Prob. 121ECh. 4 - 124. An important reaction that takes place in a...Ch. 4 - 125. A liquid fuel mixture contains 30.35% hexane...Ch. 4 - 126. Titanium occurs in the magnetic mineral...Ch. 4 - Prob. 125ECh. 4 - Prob. 126ECh. 4 - Prob. 127ECh. 4 - Prob. 128ECh. 4 - 131. Recall from Section 4.6 that sodium carbonate...Ch. 4 - 132. Lead poisoning is a serious condition...Ch. 4 - Prob. 131ECh. 4 - Prob. 132ECh. 4 - Prob. 133ECh. 4 - Prob. 134ECh. 4 - Prob. 135ECh. 4 - Prob. 136ECh. 4 - Prob. 137ECh. 4 - Consider the generic ionic compounds with the...
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