ime 1 (s) Temperature 1 (degrees C) Time (s) Temperature 2 (degrees C) 84.3 86.5 Cooling Curves 30 83.2 30 84.9 100 y0.0423x+ 85.54 R0.9924 Cooling Curve (Gray) 60 82.2 60 83.4 y0.0286x 83.664 R0.9927 90 81.2 90 81.9 Cooling Curve (Blue) y0.0012x + 70.188 R0.6079 120 80.2 120 80.4 90 y0.0018x + 65.64 R=0.6372 150 79.2 150 78.9 y-axis: Temperature (degrees C x-axis: Time (seconds) 180 78.2 180 77.5 Coling Curve (Yellow) Cooling Curve (Orange) 210 77.3 210 76.1 80 240 76.4 240 74.8 270 75.5 270 73.5 300 330 70 74.7 300 72.2 73.8 330 71 360 73.1 360 69.9 60 390 72.3 390 68.8 420 71.6 420 67.8 450 71 450 66.8 50 480 70.4 480 66 510 69.9 510 65.2 540 69.6 540 64.7 40 570 69.4 570 64.5 600 69.3 600 64.4 30 630 69.3 630 64.3 Gray/Yellow: Cooling Curve 1 Blue/Orange: Cooling Curve 2 y-axis: Temperature (degrees C) x-axis: Time (seconds) 660 69.3 660 64.3 64.3 64.3 690 69.3 690 20 720 69.3 720 750 69.3 750 64.2 780 69.2 780 64.2 10 810 69.2 810 64.2 840 69.2 840 64.2 870 69.2 870 64.2 100 200 300 400 500 600 700 800 900 1000 900 69.2 900 64.1
ime 1 (s) Temperature 1 (degrees C) Time (s) Temperature 2 (degrees C) 84.3 86.5 Cooling Curves 30 83.2 30 84.9 100 y0.0423x+ 85.54 R0.9924 Cooling Curve (Gray) 60 82.2 60 83.4 y0.0286x 83.664 R0.9927 90 81.2 90 81.9 Cooling Curve (Blue) y0.0012x + 70.188 R0.6079 120 80.2 120 80.4 90 y0.0018x + 65.64 R=0.6372 150 79.2 150 78.9 y-axis: Temperature (degrees C x-axis: Time (seconds) 180 78.2 180 77.5 Coling Curve (Yellow) Cooling Curve (Orange) 210 77.3 210 76.1 80 240 76.4 240 74.8 270 75.5 270 73.5 300 330 70 74.7 300 72.2 73.8 330 71 360 73.1 360 69.9 60 390 72.3 390 68.8 420 71.6 420 67.8 450 71 450 66.8 50 480 70.4 480 66 510 69.9 510 65.2 540 69.6 540 64.7 40 570 69.4 570 64.5 600 69.3 600 64.4 30 630 69.3 630 64.3 Gray/Yellow: Cooling Curve 1 Blue/Orange: Cooling Curve 2 y-axis: Temperature (degrees C) x-axis: Time (seconds) 660 69.3 660 64.3 64.3 64.3 690 69.3 690 20 720 69.3 720 750 69.3 750 64.2 780 69.2 780 64.2 10 810 69.2 810 64.2 840 69.2 840 64.2 870 69.2 870 64.2 100 200 300 400 500 600 700 800 900 1000 900 69.2 900 64.1
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...
Related questions
Question
Using the graph, fill in the blanks
Transcribed Image Text:Time 1 (s)
Temperature 1 (degrees C) Time (s)
Temperature 2 (degrees C)
84.3
86.5
Cooling Curves
30
83.2
30
84.9
100
60
82.2
60
83.4
y = -0.0423x + 85.54
R? = 0.9924
y = -0.0286x + 83.664
R2 = 0.9927
90
81.2
90
81.9
Cooling Curve (Gray)
Cooling Curve (Blue)
120
80.2
120
80.4
90
y = -0.0018x + 65.64
R2 = 0.6372
y = -0.0012x + 70.188
R? = 0.6079
150
79.2
150
78.9
180
78.2
180
77.5
Cooling Curve (Yellow) Cooling Curve (Orange)
y-axis: Temperature (degrees C)
210
77.3
210
76.1
x-axis: Time (seconds)
80
240
76.4
240
74.8
... ..
270
75.5
270
73.5
70
300
74.7
300
72.2
330
73.8
330
71
360
73.1
360
69.9
60
390
72.3
390
68.8
420
71.6
420
67.8
450
71
450
66.8
50
480
70.4
480
66
510
69.9
510
65.2
540
69.6
540
64.7
40
570
69.4
570
64.5
600
69.3
600
64.4
30
630
69.3
630
64.3
Gray/Yellow: Cooling Curve 1
Blue/Orange: Cooling Curve 2
y-axis: Temperature (degrees C)
x-axis: Time (seconds)
660
69.3
660
64.3
690
69.3
690
64.3
20
720
69.3
720
64.3
750
69.3
750
64.2
780
69.2
780
64.2
10
810
69.2
810
64.2
840
69.2
840
64.2
870
69.2
870
64.2
100
200
300
400
500
600
700
800
900
1000
900
69.2
900
64.1
Transcribed Image Text:Table 3. Freezing point determination
Table view
List view
Table 3. Freezing point determination
Cooling Curve #1
Cooling Curve #2
Choose...
Choose...
Final time to include in cooling portion
510 seconds
510 seconds
Slope of cooling portion
-0.0286
-0.0423
y-intercept of cooling portion
83.664
85.54
Slope of freezing portion
-0.0012
-0.0018
70.188
65.54
y-intercept of freezing portion
Time at which 2 lines intersect (seconds)
Calculated freezing point (°C)
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 1 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Recommended textbooks for you
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY