General Chemistry: Principles and Modern Applications (11th Edition)
11th Edition
ISBN: 9780132931281
Author: Ralph H. Petrucci, F. Geoffrey Herring, Jeffry D. Madura, Carey Bissonnette
Publisher: PEARSON
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Question
Chapter 4, Problem 27E
Interpretation Introduction
Interpretation:
The mass of hydrogen gas produced should be calculated.
Concept introduction:
The study in which the amount of materials i.e. reactant or products are consumed or produced is known as stoichiometry.
Number of moles is defined as the ratio of mass to the molar mass. The mathematical expression is given by:
Number of moles =
The mathematical expression for density is:
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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
General Chemistry: Principles and Modern Applications (11th Edition)
Ch. 4 - Balance the following equations by inspection. a....Ch. 4 - Balance the following equations by inspection. a....Ch. 4 - Balance the following equations by inspection. a....Ch. 4 - Balance the following equations by inspection. a....Ch. 4 - Write balanced equations based on the information...Ch. 4 - Write balanced equations based on the information...Ch. 4 - Write balanced equations to represent the complete...Ch. 4 - Write balanced equations to represent the complete...Ch. 4 - Write balanced equations to represent a. the...Ch. 4 - Write balanced equations to represent: a. the...
Ch. 4 - Write a balanced chemical equation for the...Ch. 4 - Write a balanced chemical equation for the...Ch. 4 - Prob. 13ECh. 4 - A 3.104 g sample of an oxide of manganese contains...Ch. 4 - Iron metal reacts with chlorine gas. How many...Ch. 4 - If 75.8gPCI2 is produced by the reaction...Ch. 4 - A laboratory method of preparing O2g involves the...Ch. 4 - A commercial method of manufacturing hydrogen...Ch. 4 - How many grams of Ag2CO2 are decomposed to yield...Ch. 4 - How many kilograms of HNO2 are consumed to produce...Ch. 4 - The reaction of calcium hydride with water can be...Ch. 4 - The reaction of potassium superoxide, KO2, is used...Ch. 4 - Prob. 23ECh. 4 - Sold silver oxide, Ag2O (s), decomposes at...Ch. 4 - Decarborane, B10H14, was used as a fuel for...Ch. 4 - The rocket boosters of the space shuttle...Ch. 4 - Prob. 27ECh. 4 - An excess of aluminum foil is allowed to react...Ch. 4 - Prob. 29ECh. 4 - Prob. 30ECh. 4 - What are the molarities of the following solutes...Ch. 4 - Prob. 32ECh. 4 - What are the molarities of the following solutes?...Ch. 4 - What ere the molarities of the following solutes?...Ch. 4 - How much a. glucose, C5H12O5, in grams, must be...Ch. 4 - Prob. 36ECh. 4 - Prob. 37ECh. 4 - In many communities, water is fluoridated to...Ch. 4 - Prob. 39ECh. 4 - Prob. 40ECh. 4 - Prob. 41ECh. 4 - Prob. 42ECh. 4 - A 10.00 mL sample of 2.05MKNO2 is diluted to a...Ch. 4 - What volume of 2.00MAgNO2 must be diluted with...Ch. 4 - Water is evaporated from 125 mL of 0.198MK2SO4...Ch. 4 - A 25.0 mL sample of HCl(aq) is diluted to a volume...Ch. 4 - Prob. 47ECh. 4 - Prob. 48ECh. 4 - Prob. 49ECh. 4 - Excess NaHCO2 is added to 525 mL of 0.220MCu(...Ch. 4 - How many milliliters of 0.650MK2CrO4 are needed to...Ch. 4 - Consider the reaction below....Ch. 4 - Exactly 1.00 mL of an aqueous solution of HNO2 is...Ch. 4 - A 5.00 mL sample of an aqueous solution of H2PO4...Ch. 4 - Prob. 55ECh. 4 - Prob. 56ECh. 4 - How many grams of Ag2CrO4 will precipitate if...Ch. 4 - What volume of MKMnO4 is necessary to convert 12.5...Ch. 4 - Prob. 59ECh. 4 - A method of lowering the concentration of HCI(aq)...Ch. 4 - Prob. 61ECh. 4 - A 25.00 mL sample of HCI(aq) was to a 0.1000 g...Ch. 4 - How many moles of NO(g) can be produced in the...Ch. 4 - The reaction of calcium hydride and water produces...Ch. 4 - A 0.696 mol sample of Cu is added to 136 mL of...Ch. 4 - How many grams of H2O are produced by the reaction...Ch. 4 - Prob. 67ECh. 4 - Lithopone is a brilliant white pigment used in...Ch. 4 - Ammonia can be generated by heating together he...Ch. 4 - Chlorine can be generated by heating together...Ch. 4 - Chromium(II) sulfate. CrSO4, is a reagent that has...Ch. 4 - Titanium tetrachloride, TiCl4 , is prepared by the...Ch. 4 - In the reaction of 277 g CCI4 an excess of HF,...Ch. 4 - In the reaction shown, 100.0gC5H10OH yielded 64.0...Ch. 4 - Prob. 75ECh. 4 - Nitrogen gas, N2 can be prepared by passing...Ch. 4 - The reactionof 15.0 g C4H2OH, 22.4 g NaBr, and...Ch. 4 - Prob. 78ECh. 4 - How many grams of commercial acetic acid (97%...Ch. 4 - Suppose that reactions (a) and (b) each have a 92%...Ch. 4 - An essentially 100% yield is necessary for a...Ch. 4 - Prob. 82ECh. 4 - How many grams of HCI are consumed the reaction of...Ch. 4 - How many grams of CO2 are produced in the complete...Ch. 4 - Dichlorodifluoromethane, once widely used a...Ch. 4 - Prob. 86ECh. 4 - Prob. 87ECh. 4 - Sodium bromide, used to produce silver bromide for...Ch. 4 - Prob. 89ECh. 4 - The following set of reactions is to be used as...Ch. 4 - Prob. 91ECh. 4 - A mixture of Fe2O2 and FeO was analyzed and found...Ch. 4 - Prob. 93IAECh. 4 - Prob. 94IAECh. 4 - Prob. 95IAECh. 4 - Prob. 96IAECh. 4 - Hydrogen gas, H2O, is passed over Fe2O2(s) at 400...Ch. 4 - A sulfide of iron, 36.5% S by mass, is heated in...Ch. 4 - Prob. 99IAECh. 4 - Prob. 100IAECh. 4 - What volume of 0.149 M HCI must be added to 1.00 ×...Ch. 4 - Prob. 102IAECh. 4 - Prob. 103IAECh. 4 - Prob. 104IAECh. 4 - Prob. 105IAECh. 4 - Prob. 106IAECh. 4 - Prob. 107IAECh. 4 - Prob. 108IAECh. 4 - Prob. 109IAECh. 4 - Prob. 110IAECh. 4 - Prob. 111IAECh. 4 - A 0.155 g sample of an Al-Mg alloy reacts with an...Ch. 4 - Prob. 113IAECh. 4 - The following chemical equation represents the...Ch. 4 - Prob. 115IAECh. 4 - Prob. 116IAECh. 4 - Prob. 117IAECh. 4 - Prob. 118IAECh. 4 - Write a chemical equation to represent the...Ch. 4 - Prob. 120IAECh. 4 - Prob. 121IAECh. 4 - When sulfur (S5) and chlorine are mixed in a...Ch. 4 - Prob. 123IAECh. 4 - Prob. 124IAECh. 4 - Prob. 125IAECh. 4 - Prob. 126IAECh. 4 - Prob. 127IAECh. 4 - Melamine, C2N2( NH2)2, is used in adhesives and...Ch. 4 - Prob. 129IAECh. 4 - A fundamental principle green chemistry is atom...Ch. 4 - The industrial productionof hydrazine (N2H2) by...Ch. 4 - Prob. 132IAECh. 4 - Prob. 133FPCh. 4 - Prob. 134FPCh. 4 - Prob. 135SAECh. 4 - Prob. 136SAECh. 4 - Prob. 137SAECh. 4 - Prob. 138SAECh. 4 - Prob. 139SAECh. 4 - Prob. 140SAECh. 4 - In the decomposition of silver carbonate to form...Ch. 4 - Prob. 142SAECh. 4 - What is the volume (in ML) of 0.160MKNO2 that must...Ch. 4 - To prepare a solution that is 0.50 M KCI starting...Ch. 4 - An aqueous solution that is 5.30% LiBr by mass...Ch. 4 - Prob. 146SAECh. 4 - Consider the reaction 2Fe2O2+3C4Fe+3CO2 . What is...Ch. 4 - Prob. 148SAECh. 4 - The incomplete combustion of gasoline produces...Ch. 4 - Prob. 150SAECh. 4 - Prob. 151SAECh. 4 - Prob. 152SAECh. 4 - For each of the following compounds,write a...Ch. 4 - Appendix E descries a useful study aid known as...
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