If you measured the boiling point of the solution used in Trial 4, would you predict it would have a boiling point equal to, higher than, or lower than the boiling point of pure cyclohexane? Explain your answer.
If you measured the boiling point of the solution used in Trial 4, would you predict it would have a boiling point equal to, higher than, or lower than the boiling point of pure cyclohexane? Explain your answer.
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
If you measured the boiling point of the solution used in Trial 4, would you predict it would have
a boiling point equal to, higher than, or lower than the boiling point of pure cyclohexane?
Explain your answer.
![CHM-202 Lab 2 Freezing Point Depression Rev2 G6-SP21 HYBRID REMOTE
7/16
2.
Determination of Freezing Points
Cyclohexane
Trial 1 (see computer graph)
Trial 2 (see computer graph)
Tr by computer
6.852く.
6,85ぶC6.63Tc/ae 6.765らa l6.766C
6.679°C
Average Tr
%3D
Cyclohexane solutions
Trial 3 (see computer graph)
Trial 4 (see computer graph)
Linear Fit of Initial
m = -19.30 °C/minute
m = -17.12 °C/minute
%3D
Temp Drop (LI1) [2.4]
b = 22.54 °C
b = 24.03 °C
%3D
Linear Fit of Freezing
Temp Drop (L2) [2.4]
m = -0.2880 °C/minute
m = -0.2367 °C/minute
m3D
b 5.04 °C
b=4.258 °C
Solve for time at intersection of
lines
(make two lines equal) [3.5]
Te for solutions
[2.4, 3.5-3.7]
4.775
3.181
Graphical Determination
(Trial 3 or Trial 4)
Trial 3
Trial 4
ATrfor cyclohexane solutions
[4.3]
C.766 -4.775=1.91.
6.766-3.181=2785
molality (Cm)of cyclohexane
solutions [4.4]
molebity=dt/kf
2.785C
205<M=/a1359n
moler
0. 0971 IX0.00779 kor
molu Ay
0.00075 64 he
number of moles of solute
0.1359x0.00779
present [4.5]
6.001058 m
13.060
MW of solute [4.6]
0.12039:00007S66maln 0886g/0.U007566
159.09/md
178.29md
MW of p-dichlorobenzene
[4.2, 4.7] CH,Cl,
True = 47.00g mal
Avg-168.645
159147-0.08163 x100
147
178.2-147=o.a1224
पिक
% Error [4.7]
%3D
%3D
28.163
het re =](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9d5280c1-0888-4121-94fb-2a368f5b3705%2Fa7899f17-1c0c-4937-b1e5-afe06604723d%2Fwhsdvb_processed.jpeg&w=3840&q=75)
Transcribed Image Text:CHM-202 Lab 2 Freezing Point Depression Rev2 G6-SP21 HYBRID REMOTE
7/16
2.
Determination of Freezing Points
Cyclohexane
Trial 1 (see computer graph)
Trial 2 (see computer graph)
Tr by computer
6.852く.
6,85ぶC6.63Tc/ae 6.765らa l6.766C
6.679°C
Average Tr
%3D
Cyclohexane solutions
Trial 3 (see computer graph)
Trial 4 (see computer graph)
Linear Fit of Initial
m = -19.30 °C/minute
m = -17.12 °C/minute
%3D
Temp Drop (LI1) [2.4]
b = 22.54 °C
b = 24.03 °C
%3D
Linear Fit of Freezing
Temp Drop (L2) [2.4]
m = -0.2880 °C/minute
m = -0.2367 °C/minute
m3D
b 5.04 °C
b=4.258 °C
Solve for time at intersection of
lines
(make two lines equal) [3.5]
Te for solutions
[2.4, 3.5-3.7]
4.775
3.181
Graphical Determination
(Trial 3 or Trial 4)
Trial 3
Trial 4
ATrfor cyclohexane solutions
[4.3]
C.766 -4.775=1.91.
6.766-3.181=2785
molality (Cm)of cyclohexane
solutions [4.4]
molebity=dt/kf
2.785C
205<M=/a1359n
moler
0. 0971 IX0.00779 kor
molu Ay
0.00075 64 he
number of moles of solute
0.1359x0.00779
present [4.5]
6.001058 m
13.060
MW of solute [4.6]
0.12039:00007S66maln 0886g/0.U007566
159.09/md
178.29md
MW of p-dichlorobenzene
[4.2, 4.7] CH,Cl,
True = 47.00g mal
Avg-168.645
159147-0.08163 x100
147
178.2-147=o.a1224
पिक
% Error [4.7]
%3D
%3D
28.163
het re =
Transcribed Image Text:Depression Rev2 G6-SP21 HYBRID REMOTE
16/16
0.1203+ 0.0683g PDCB Triel #4
il19/21
Linear Fit for. Latest | Temperature
Temp mt+b
m (Slope) -1712 "C/min
b(Y-Intercept): 24.03 C
Correlation -0.9971
RMSE 0.3087 C
Linear Fit for: Latest | Temperature
Temp mt+b
m (Slope) -0.2367 Cimin
bY-Intercept) 4 258 C
Correlation -0.9926
RMSE 0.02800 "c
12 Crep (1) 1/19/21 16:39
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
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