EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
6th Edition
ISBN: 9781305687875
Author: Gilbert
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Chapter 3.3, Problem 12E
Interpretation Introduction

Interpretation:Whether aThiele micro melting-point technique can be used to determine the exact melting point of an unknowncompound or not needs to be determined.

Concept Introduction:The Thiele tube is used to determine the melting point of an unknown compound in quantitative analysis.

It is a laboratory glassware that is heated on an oil bath. The Thiele tube is heated with a small flame. As the boiling point of substance reaches, the heating is stopped and the temperature starts to fall which gives the idea about the boiling point of substance.

For the melting point, the temperature must be checked at which the substance starts melting.

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A student was trying to prepare acetaminophen in the laboratory. She found a melting point range of 169-173. The melting of acetaminophen is reported to be 168-172c. How could the student have verified that the produce is acetaminophen? Group of answer choices. Retake the sample melting point with more material in the sample. Ask the lab partner to measure the melting point of the sample. Take a mixed melting point with an authentic sample of acetaminophen
What are the different melting point apparatus that are available for routine analysis? Describe each.
4. A student received an impure sample of benzoic acid and reported the melting "mp=121.5 °C." The student reported the sample as pure since the melting too far off. What mistake was made that could have proven the sample's point as wasn't point impurity?
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