EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
6th Edition
ISBN: 9781305687875
Author: Gilbert
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Question
Chapter 3.3, Problem 22E
a)
Interpretation Introduction
Interpretation:Difference in melting points of sample with sample tube has height of
Concept introduction:Melting point is temperature that involves conversion of substance from solid to liquid state. Both liquid and solid phases are present in equilibrium with each other at this temperature.
b)
Interpretation Introduction
Interpretation:Source of error in measurement of melting point of
Concept introduction:Melting point is temperature that involves conversion of substance from solid to liquid state. Both liquid and solid phases are present in equilibrium with each other at this temperature.
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2. The goal behind suction filtration is to remove soluble impurities that are on the
surface of the crystals. Therefore, why can't you simply use suction filtration
instead of recrystallization to purify an impure solid?
You were tasked to separate the components of a mixture containing silica, sodium chloride and charcoal. TNāCI
dissolves in water while silica and charcoal are not water-soluble. Only charcoal dissolves in carbon disulfide.
a. Write a short experimental procedure to carry out the separation of the mixture.
b. Given the following data, determine the percentage of charcoal, sodium chloride and silica.
Mass (g)
Mass of beaker
100.000
Mass of beaker + mixture
110.000
mass of evaporating dish
62.000
mass of evaporating dish + solid after
evaporation of water
65.000
Mass of beaker + charcoal + silica after evaporation of
excess water
117.000
mass of beaker + silica after decanting dissolved charcoal
and drying
113.545
What is the main purpose of recrystallisation? A. Chemists recrystallise solids when they want to change big crystals into small crystals. B. Chemists recrystallise solids that are contaminated with impurities. If done properly, the solid will then recrystallise in a purer form. C. Chemists recrystallise solids when they want to change small crystals into big crystals.
Chapter 3 Solutions
EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
Ch. 3.2 - Prob. 1ECh. 3.2 - Prob. 2ECh. 3.2 - Prob. 3ECh. 3.2 - Prob. 4ECh. 3.2 - Prob. 5ECh. 3.2 - Prob. 6ECh. 3.2 - Prob. 7ECh. 3.2 - Prob. 8ECh. 3.2 - Prob. 9ECh. 3.2 - Prob. 10E
Ch. 3.2 - Prob. 11ECh. 3.2 - Prob. 12ECh. 3.2 - Prob. 13ECh. 3.2 - Prob. 14ECh. 3.2 - Prob. 15ECh. 3.2 - Prob. 16ECh. 3.2 - Prob. 17ECh. 3.2 - Prob. 18ECh. 3.2 - Prob. 19ECh. 3.2 - Prob. 20ECh. 3.2 - Prob. 21ECh. 3.2 - Prob. 22ECh. 3.2 - Prob. 23ECh. 3.2 - Prob. 24ECh. 3.2 - Prob. 25ECh. 3.2 - Prob. 26ECh. 3.2 - Prob. 27ECh. 3.2 - Prob. 28ECh. 3.2 - Prob. 29ECh. 3.2 - Prob. 30ECh. 3.2 - Prob. 31ECh. 3.2 - Prob. 32ECh. 3.2 - Prob. 34ECh. 3.3 - Prob. 1ECh. 3.3 - Prob. 2ECh. 3.3 - Prob. 3ECh. 3.3 - Prob. 4ECh. 3.3 - Prob. 5ECh. 3.3 - Prob. 6ECh. 3.3 - Prob. 7ECh. 3.3 - Prob. 8ECh. 3.3 - Prob. 10ECh. 3.3 - Prob. 11ECh. 3.3 - Prob. 12ECh. 3.3 - Prob. 13ECh. 3.3 - Prob. 14ECh. 3.3 - Prob. 15ECh. 3.3 - Prob. 16ECh. 3.3 - Prob. 17ECh. 3.3 - Prob. 18ECh. 3.3 - Prob. 19ECh. 3.3 - Prob. 21ECh. 3.3 - Prob. 22ECh. 3.3 - Prob. 23ECh. 3.3 - Prob. 24ECh. 3.3 - Prob. 25ECh. 3.3 - Prob. 26E
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