Basic Chemistry
6th Edition
ISBN: 9780134878119
Author: Timberlake, Karen C. , William
Publisher: Pearson,
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Chapter 9, Problem 68APP
(a)
Interpretation Introduction
Interpretation : The theoretical yield of
Concept Introduction : The actual yield of the product is the amount of product which is formed at the end of reaction experimentally whereas theoretical yield represents the amount of product calculated by expecting that 100 % of reactant changes to product. The percent yield can be shown as:
(b)
Interpretation Introduction
Interpretation : The actual yield of the
Concept Introduction : The actual yield of the product is the amount of product which is formed at the end of reaction experimentally whereas theoretical yield represents the amount of product calculated by expecting that 100 % of reactant changes to product. The percent yield can be shown as:
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Assign this HSQC Spectrum ( please editing clearly on the image)
(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
Chapter 9 Solutions
Basic Chemistry
Ch. 9.1 - Calculate the total mass of the reactants and the...Ch. 9.1 - Calculate the total mass of the reactants and the...Ch. 9.2 - Calculate the total mass of the reactants and the...Ch. 9.2 - Write all of the mole-mole factors for each of the...Ch. 9.2 - For the chemical equations in problem 9.3, write...Ch. 9.2 - For the chemical equations in problem 9.4, write...Ch. 9.2 - The chemical reaction of hydrogen with oxygen...Ch. 9.2 - Ammonia is produced by the chemical reaction of...Ch. 9.2 - Carbon disulfide and carbon monoxide are produced...Ch. 9.2 - In the acetylene torch, acetylene gas burns in...
Ch. 9.3 - Sodium reacts with oxygen to produce sodium oxide....Ch. 9.3 - Nitrogen reacts with hydrogen to produce ammonia....Ch. 9.3 - Ammonia and oxygen react to form nitrogen and...Ch. 9.3 - Iron(III) oxide reacts with carbon to give iron...Ch. 9.3 - Prob. 15PPCh. 9.3 - Calcium cyanamide, CaCN2 , reacts with water to...Ch. 9.3 - Prob. 17PPCh. 9.3 - Prob. 18PPCh. 9.4 - A taxi company has 10 taxis. a. On a certain day,...Ch. 9.4 - Prob. 20PPCh. 9.4 - Prob. 21PPCh. 9.4 - Iron and oxygen react to form iron(III) oxide....Ch. 9.4 - For each of the following reactions, 20.0 g of...Ch. 9.4 - For each of the following reactions, 20.0 g of...Ch. 9.4 - For each of the following reactions, calculate the...Ch. 9.4 - For each of the following reactions, calculate the...Ch. 9.5 - Carbon disulfide is produced by the reaction of...Ch. 9.5 - Iron (III) oxide reacts with carbon monoxide to...Ch. 9.5 - Aluminum reacts with oxygen to produce aluminum...Ch. 9.5 - Propane ( C3H8 ) bums in oxygen to produce carbon...Ch. 9.5 - Prob. 31PPCh. 9.5 - When 56.6 g of calcium is reacted with nitrogen...Ch. 9.6 - In an exothermic reaction, is the energy of the...Ch. 9.6 - In an endothermic reaction, is the energy of the...Ch. 9.6 - Prob. 35PPCh. 9.6 - Prob. 36PPCh. 9.6 - Classify each of the following as exothermic or...Ch. 9.6 - Classify each of the following as exothermic or...Ch. 9.6 - Prob. 39PPCh. 9.6 - a. How many kilojoules are released when 75.0 g of...Ch. 9.6 - Prob. 41PPCh. 9.6 - Calculate the energy change for the reaction...Ch. 9.6 - Prob. 43PPCh. 9.6 - Prob. 44PPCh. 9.6 - In one step in the synthesis of the insecticide...Ch. 9.6 - Another widely used insecticide is carbofuran...Ch. 9 - The chapter sections lo review are shown in...Ch. 9 - The chapter sections lo review are shown in...Ch. 9 - The chapter sections lo review are shown in...Ch. 9 - The chapter sections lo review are shown in...Ch. 9 - The chapter sections lo review are shown in...Ch. 9 - The chapter sections lo review are shown in...Ch. 9 - The chapter sections lo review are shown in...Ch. 9 - The chapter sections lo review are shown in...Ch. 9 - Prob. 55APPCh. 9 - Prob. 56APPCh. 9 - Prob. 57APPCh. 9 - Prob. 58APPCh. 9 - Prob. 59APPCh. 9 - Prob. 60APPCh. 9 - Pentane gas ( C5H12 ) reacts with oxygen to...Ch. 9 - Prob. 62APPCh. 9 - Prob. 63APPCh. 9 - Prob. 64APPCh. 9 - Prob. 65APPCh. 9 - Prob. 66APPCh. 9 - Prob. 67APPCh. 9 - Prob. 68APPCh. 9 - Prob. 69APPCh. 9 - The equation for the reaction of iron and oxygen...Ch. 9 - Prob. 71APPCh. 9 - Prob. 72APPCh. 9 - Prob. 73CPCh. 9 - Prob. 74CPCh. 9 - Prob. 75CPCh. 9 - The following problems are related to the topics...Ch. 9 - Prob. 77CPCh. 9 - Prob. 78CPCh. 9 - Prob. 79CPCh. 9 - Prob. 80CPCh. 9 - The following problems are related to the topics...Ch. 9 - Prob. 82CPCh. 9 - Prob. 83CPCh. 9 - The following problems are related to the topics...Ch. 9 - Prob. 85CPCh. 9 - Prob. 86CP
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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 10arrow_forwardelow are experimentally determined van Deemter plots of column efficiency, H, vs. flow rate. H is a quantitative measurement of band broadening. The left plot is for a liquid chromatography application and the night is for gas chromatography. Compare and contrast these two plots in terms of the three band broadening mechanisms presented in this activity. How are they similar? How do they differ? Justify your answers.? 0.4 H (mm) 0.2 0.1- 0.3- 0 0.5 H (mm) 8.0 7.0 6.0 5.0 4.0- 3.0 T +++ 1.0 1.5 0 2.0 4.0 Flow Rate, u (cm/s) 6.0 8.0 Flow Rate, u (cm/s)arrow_forwardPredict the products of this organic reaction: + H ZH NaBH3CN H+ n. ? Click and drag to start drawing a structure. Xarrow_forward
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