EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
6th Edition
ISBN: 9781305687875
Author: Gilbert
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Chapter 9.2, Problem 13E
(a)
Interpretation Introduction
Interpretation: Using a relative reactivity for 1° to 2° hydrogen atoms of
Concept Introduction: A hydrogen that is bonded to the primary carbon is called a 1o hydrogen and the hydrogen that is bonded to the secondary carbon is called a 2o hydrogen.
(b)
Interpretation Introduction
Interpretation: Using a relative reactivity for 1° to 2° hydrogen atoms of
Concept Introduction: When a chemical compound reacts with other compounds, its relative activity is defined as relative reactivity.
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What is the experimental yield of CRUDE PRODUCT AND FINAL PRODUCT (grams and percentage)
Experiment: Oxidation of -Chlorotoluene to o-Chlorobenzoic acid
materials used
dissolved 3.35 g of KMnO4
1.20 mL of 2-chlorotoluene was added to the mixture
3.0 mL of concentrated hydrochloric acid (pH~2)
10 mL of toluene
-The crystals were isolated by vacuum filtration-
Product Characterization
1.15 g of the crude product
0.93 g of the final product
M.p. (final): 139-141 celsius
Someone decided to try to recrystallize the molecule biphenyl using benzene as a solvent, but although they only had a 5% impurity, they recovered less than 10% of their total product! Assuming they didn’t lose any compound to a lab mishap, explain why their yield is likely to be so low.
In a Diels Alder synthesis, a student used 1.20 mL of α-phellandrene, 2.0 mL of diethyl ether, and 0.647 g of maleic anhydride to obtain 1.023 g of purified product. Show all work and include units in your calculations!
a) What is the molar mass of the product? ____________________ g/mol
b) What is the stoichiometry between α-phellandrene : maleic anhydride : product? ______ : ______ : ______
c) Determine which reactant is the limiting reagent.
d) Determine the theoretical yield for the student’s experiment.
e) Calculate the percent yield for the student’s experiment.
Chapter 9 Solutions
EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
Ch. 9.2 - Prob. 1ECh. 9.2 - Prob. 2ECh. 9.2 - Prob. 3ECh. 9.2 - Prob. 4ECh. 9.2 - Prob. 5ECh. 9.2 - Prob. 6ECh. 9.2 - Prob. 7ECh. 9.2 - Prob. 8ECh. 9.2 - Prob. 9ECh. 9.2 - Prob. 10E
Ch. 9.2 - Prob. 11ECh. 9.2 - Prob. 12ECh. 9.2 - Prob. 13ECh. 9.2 - Prob. 14ECh. 9.2 - Prob. 15ECh. 9.2 - Prob. 16ECh. 9.2 - Prob. 17ECh. 9.2 - Prob. 18ECh. 9.2 - Prob. 19ECh. 9.2 - Prob. 20ECh. 9.2 - Prob. 21ECh. 9.2 - Prob. 22ECh. 9.2 - Prob. 23ECh. 9.2 - Prob. 24ECh. 9.3 - Prob. 1ECh. 9.3 - Prob. 2ECh. 9.3 - Prob. 3ECh. 9.3 - Prob. 4ECh. 9.3 - Prob. 5ECh. 9.3 - Prob. 6ECh. 9.3 - Prob. 7ECh. 9.3 - Prob. 8ECh. 9.3 - Prob. 9ECh. 9.3 - Prob. 10ECh. 9.3 - Prob. 11ECh. 9.3 - Prob. 12ECh. 9.3 - Prob. 13ECh. 9.3 - Prob. 14E
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