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Identification Of An Unknown Solid By Melting

Identification of an unknown solid by melting point

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Title: Identification of an unknown solid by melting point

Essay Details:

Subject: Miscellaneous

Author: Dorothy W

Date: October 29, 2013

Level: University

Grade: A

Length: 2 / 506

Essay text:

Melting point of mixture (Unknown + Benzil) Temperature (??C) Observation Unmelted Shiny light yellow crystal First liquid appear point 95 Grainy yellow Becoming all liquid 97 Clear ?±. Discussion of results Assessment of sample purity for a known substance. By comparing observed range for an actual sample to the known range for a pure sample, I can tell whether my actual sample is pure or contaminated (the range is depressed and broadened). So, In part A, melting point of benzoic acid was observed in range 122 to 125 ?¬C. By comparing melting point of benzoic acid (121 ?¬C) with result from part A, the result is little higher than the pure melting point...

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