A student observes a melting point for sulfanilamide of 77-81 °C. What can be concluded from this observed melting point? (The literature melting points for sulfanilamide is 164-166 °C) O The sample is not sulfanilamide O The sample is likely pure The sample is likely contaminated The sample was heated too quickly O The sample is still significantly wet

A student observes a melting point for sulfanilamide of 77-81 °C. What can be concluded from this observed melting point? (The literature melting points for sulfanilamide is 164-166 °C) O The sample is not sulfanilamide O The sample is likely pure The sample is likely contaminated The sample was heated too quickly O The sample is still significantly wet

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter10: Liquids And Solids

Section: Chapter Questions

Problem 109E

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Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.

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A student observes a melting point for sulfanilamide of 77-81 °C. What can be concluded from this
observed melting point? (The literature melting points for sulfanilamide is 164-166 °C)
The sample is not sulfanilamide
The sample is likely pure
The sample is likely contaminated
The sample was heated too quickly
The sample is still significantly wet

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