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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Transcribed Image Text:1.1.5. RESULTS & ANALYSIS
1. Fill out the information in the table below.
Substance
1. Pure Urea
2. Pure Cinnamic Acid
3.75 Urea-25C.A%
4.50Urea-50C.A%
5. 25Urea-75C.A %
Initial Melting
Temp. °C
133
134
94
95
98
set Point 120° (1,2)
set Point = 90° (3,4,5)
Melting Range
Final Melting
Temp. °C
136
137
130
100
109
-
3
3
36
5
11
On a separate graph paper sketch a graph of the eutectic point diagram using the mole
fractions calculated above as the X-axis and the melting point Temperatures as Y-axis.
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