Determine the midpoint of the starting and completed melting temperatures. Use those temperatures to graph the melting points of the pure compounds and the mixtures. Table 3. Melting pont analysis Table view List view Table 3. Melting point analysis Start melting temp (°C) Complete melted temp (°C) Midpoint of melting temp range (°C) Pure benzoic acid 80:20 mixture (benzoic acid:mandelic acid) 121 125 123 115.5 113 118 60:40 mixture (benzoic acid:mandelic acid) 104 99 109 40:60 mixture (benzoic 99.5 acid:mandelic acid) 95 104 20:80 mixture (benzoic 109.5 acid:mandelic acid) 107 112 120.5 Pure mandelic acid 118 123 140 120 Chart Title y= 0.5x+73.833 B²=0.9967 100 y=-0.4875x+119.75. R2-0.998 60 80 Axis Title 60 60 40 40 20 -10 10 10 30 30 50 Axis Title 20 70 96 90 110

Determine the midpoint of the starting and completed melting temperatures. Use those temperatures to graph the melting points of the pure compounds and the mixtures. Table 3. Melting pont analysis Table view List view Table 3. Melting point analysis Start melting temp (°C) Complete melted temp (°C) Midpoint of melting temp range (°C) Pure benzoic acid 80:20 mixture (benzoic acid:mandelic acid) 121 125 123 115.5 113 118 60:40 mixture (benzoic acid:mandelic acid) 104 99 109 40:60 mixture (benzoic 99.5 acid:mandelic acid) 95 104 20:80 mixture (benzoic 109.5 acid:mandelic acid) 107 112 120.5 Pure mandelic acid 118 123 140 120 Chart Title y= 0.5x+73.833 B²=0.9967 100 y=-0.4875x+119.75. R2-0.998 60 80 Axis Title 60 60 40 40 20 -10 10 10 30 30 50 Axis Title 20 70 96 90 110

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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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