3. A student is trying to identify an unknown solid based on its melting point. She noted that the compound began to melt at 172°C and finished melting at 177°C. Knowing it is possible for there to be impurities in the sample, is this compound more likely to be camphor or hydroquinone. Explain your reasoning.

Chemistry: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
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Chapter12: States Of Matter
Section: Chapter Questions
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3. A student is trying to identify an unknown solid based on its melting point. She noted that the
compound began to melt at 172°C and finished melting at 177°C. Knowing it is possible for there
to be impurities in the sample, is this compound more likely to be camphor or hydroquinone.
Explain your reasoning.
4. A young chemist has synthesized what he believed to be acetaminophen. He measured the
melting point of this newly formed compound to be 163-178°C. If the literature value for the
melting point of acetaminophen = 169-170.5°C, would the young chemist be wise to consume
this product for headache relief? Why or why not?
Transcribed Image Text:3. A student is trying to identify an unknown solid based on its melting point. She noted that the compound began to melt at 172°C and finished melting at 177°C. Knowing it is possible for there to be impurities in the sample, is this compound more likely to be camphor or hydroquinone. Explain your reasoning. 4. A young chemist has synthesized what he believed to be acetaminophen. He measured the melting point of this newly formed compound to be 163-178°C. If the literature value for the melting point of acetaminophen = 169-170.5°C, would the young chemist be wise to consume this product for headache relief? Why or why not?
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