Is the product pure? how do you know?  here is the results:  Starting mass of benzyl       1.0883g Collected mass of product    0.8957g  Product melting point     135˚C Mixture melting point (product mixed with benzoin)  114˚C Mixture melting point (product mixed with meso-hydrobenzoin)    135˚C

Fundamentals Of Analytical Chemistry
9th Edition
ISBN:9781285640686
Author:Skoog
Publisher:Skoog
Chapter6: Random Errors In Chemical Analysis
Section: Chapter Questions
Problem 6.22QAP
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Is the product pure? how do you know? 

here is the results: 

Starting mass of benzyl       1.0883g

Collected mass of product    0.8957g 

Product melting point     135˚C

Mixture melting point (product mixed with benzoin)  114˚C

Mixture melting point (product mixed with meso-hydrobenzoin)    135˚C

%Transmittance
3063.72
1655.83
1591.42
1578.01
1534.93
1490.48
1449.17
1398.56
1324.84 1315.03 1301.98 1292.05
1245.37
1208.72
1173.16
1162.57
1097.48
1071.56
1021.35
975.30
938.95
997.96
873.93
794.34
716.10 694.88 S79.84
640.54
614.50
467.13 460.79
420.46 407.05
benzil.
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Wavenumbers (cm-1)
Transcribed Image Text:%Transmittance 3063.72 1655.83 1591.42 1578.01 1534.93 1490.48 1449.17 1398.56 1324.84 1315.03 1301.98 1292.05 1245.37 1208.72 1173.16 1162.57 1097.48 1071.56 1021.35 975.30 938.95 997.96 873.93 794.34 716.10 694.88 S79.84 640.54 614.50 467.13 460.79 420.46 407.05 benzil. 95 90 85 80 75 70 65 60 55 50 4000 3500 3000 2500 2000 1500 1000 500 Wavenumbers (cm-1)
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