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 6E
Interpretation Introduction
Interpretation:Difference between mixed melting point of compound A and compound B than that of pure A or pure B should be explained.
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. If two compounds have approximately same melting points, their melting points can be determined by mixed melting point.
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Students have asked these similar questions
4. When performing a melting point on a solid compound using a melting point apparatus, two
melting point determinations were made. One sample, which was 1 mm in height in the
capillary, possessed a melting point of 200.0-200.5°C. The other sample was 25 mm in
height. What would you expect the approximate melting point to be for this sample,
assuming identical heating rates of 1°/min? (Hint: heat is applied from the bottom of the
sample) (Give an actual numerical approximation!)
5. For the same solid compound as the question above, if the 1 mm sample was heated at 60°
per minute on a melting point apparatus, what would you expect for an approximate
melting point? (note that at this heating rate, the sample will melt rather quickly, but again
give an actual numerical approximation)
9)Who measures melting points?
A student has a mixture of two possible compounds. The student performs an extraction to
separate the two compounds. The student decides to identify the separated compounds by melting
point. The student's isolated compound has a melting range of 160-163 °C using a ramp rate of 10
°C/min. The student's partner believes that they have isolated compound 2, while the student thinks
they have compound 1. Choose the best answer to go with this scenario.
Compound 1 Literature Melting point: 113 °C
Compound 2 Literature Melting point: 155 °C.
O The students have neither of the two compounds.
O The ramp rate is too high so the experimental melting range is not accurate.
O The students likely have compound 2, but should do a mixed melting range experiment with a standard of
compound 2 to be certain.
O The students likely have compound 1, but should do a mixed melting range experiment with a standard of
compound 1 to be certain.
It is correct that they definitely have compound 1.
O It is correct…
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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