EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
6th Edition
ISBN: 9781305687875
Author: Gilbert
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Chapter 5.3, Problem 22E
(a)
Interpretation Introduction
Interpretation:
The Keqfor the reaction of benzoic acid with 4-nitroaniline should be determined.
Concept Introduction :
The equilibrium constant, K, expresses the relationship between products and reactants of a reaction at equilibrium.
(b)
Interpretation Introduction
Interpretation:
Whether a significant amount of salt is formed after mixing 4-nitroaniline and benzoic acid in equal moles or not needs to be determined.
Concept Introduction :
Equilibrium constant at a specific temperature gives an idea about the concentrations of products and reactants at the equilibrium. If the equilibrium constant is less than 1, it depicts that the amount of product form is less than that of reactants. If the equilibrium constant is more than 1, the forward reaction is favorable and more products are formed.
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Students have asked these similar questions
3. The sequence for separating a solution of benzoic acid, naphthalene and 2-naphthol
via extraction starts by washing the solution with aqueous sodium bicarbonate and follows
with washing the resulting organic extract with aqueous sodium hydroxide. Why are the
aqueous bases used in this order rather than the reverse order? Provide drawings and a brief
explanation. The information below might be useful.
OH
Benzoic acid
pka= 4.20
Base
NaHCO3
NaOH
OH
2-naphthol
pka= 9.5
Conjugate Acid
H₂CO3
H₂O
naphthalene
pka
6.4
16
1
1. Several procedures for the analysis of caffeine involve extracting the caffeine into an organic non-polar solvent (such as methylene chloride CH2Cl2). This about your experiment and what is discussed in the introduction. What might the advantage be for this approach? What is a disadvantage?
2. Think about what you said in the question above. If your sample was espresso, would your answer change? Why?
3. I was careless and ended up using a wavelength other than the peak (Say 250 nm). Would I still be able to carry out the experiment successfully? What might be the reason that I do not get optimum results?
4. I carried out the experiment using a scratched (or several scratches) cuvet for one standard, and clear cuvets for others. How might my calibration curve change (improve or get worse and why)? Pllllz answer these questions as soon as possible
1. Which of the following can most likely increase the yield of recrystallized benzoic acid?
a. A fluted filter paper was used during cold filtration.
b. The receiving flask from hot filtration does not contain a small amount of solvent.
c. Activated charcoal was not added to the solution.
d. The solution was filtered immediately after hot filtration.
Chapter 5 Solutions
EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
Ch. 5.3 - Prob. 1ECh. 5.3 - Prob. 2ECh. 5.3 - Prob. 3ECh. 5.3 - Prob. 4ECh. 5.3 - Prob. 5ECh. 5.3 - Prob. 6ECh. 5.3 - Prob. 7ECh. 5.3 - Prob. 8ECh. 5.3 - Prob. 9ECh. 5.3 - Prob. 10E
Ch. 5.3 - Prob. 11ECh. 5.3 - Prob. 12ECh. 5.3 - Prob. 13ECh. 5.3 - Prob. 14ECh. 5.3 - Prob. 15ECh. 5.3 - Prob. 16ECh. 5.3 - Prob. 17ECh. 5.3 - Prob. 18ECh. 5.3 - Prob. 19ECh. 5.3 - Prob. 20ECh. 5.3 - Prob. 21ECh. 5.3 - Prob. 22ECh. 5.4 - Prob. 1ECh. 5.4 - Prob. 2ECh. 5.4 - Prob. 3ECh. 5.4 - Prob. 4ECh. 5.4 - Prob. 5ECh. 5.4 - Prob. 6ECh. 5.4 - Prob. 7ECh. 5.4 - Prob. 8ECh. 5.4 - Prob. 9ECh. 5.4 - Prob. 10ECh. 5.4 - Prob. 11ECh. 5.4 - Prob. 12E
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