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.

Physical Chemistry
2nd Edition
ISBN:9781133958437
Author:Ball, David W. (david Warren), BAER, Tomas
Publisher:Ball, David W. (david Warren), BAER, Tomas
Chapter7: Equilibria In Multiple-component Systems
Section: Chapter Questions
Problem 7.57E
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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 =
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 =
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
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
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ISBN:
9781133958437
Author:
Ball, David W. (david Warren), BAER, Tomas
Publisher:
Wadsworth Cengage Learning,