Theoretical Value of Surface Tension at T, dyne/cm Calculated Surface Tension at T, dyne/cm (Water as Calibrating Liquid) Compounds Error Water 72.86 N/A Benzene Chloroform 27.5 Methanol 22.7 Unknown Liquid 27.0
Theoretical Value of Surface Tension at T, dyne/cm Calculated Surface Tension at T, dyne/cm (Water as Calibrating Liquid) Compounds Error Water 72.86 N/A Benzene Chloroform 27.5 Methanol 22.7 Unknown Liquid 27.0
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
100%
Solve for the theoretical value of the surface tension of Benzene using the formula
information #Using water as the calibrating liquid, determine the surface tension of
benzene, chloroform, methanol and unknown liquid using equation 2.
Surface tension of benzene can be computed as Υ = 31.58 – 0.137T + 0.0001T2
where T = temperature of benzene in oC. Compute for the surface tension
of water and the other test liquids using benzene as the calibrating liquid.
kindly help me solve for Calculated Surface Tension at T, dyne/cm (Water as Calibrating Liquid) this part only
i provide information formula you might need
Transcribed Image Text:DATA SHEET
CHE 2131L
Height due to blowing, cm
Height due to suctioning, em
Compounds
Trial 1
Trial 2
Trial 3
Trial 1
Trial 2
Trial 3
Water
1.40
1.30
1.50
1.60
1.70
1.50
Benzene
0.50
0.80
0.70
0.90
0.60
0.70
Chloroform
0.30
0.50
0.50
0.50
0.30
0.30
Methanol
0.40
0.70
0.50
0.80
0.50
0.70
Unknown
0.50
0.50
0.40
0.30
0.30
0.40
| Liquid
Average Height,
Compounds
T (C)
Density (g/ce)
em
Water
20
0.9982
Benzene
4.2
20
0.8790
2.4
3.6
Chloroform
20
1.4592
Methanol
20
0.7807
Unknown Liquid
2.4
20
1.5800
Theoretical Value of
Surface Tension at T,
dyne/cm
Calculated Surface Tension at
T, dyne/cm
(Water as Calibrating Liquid)
Compounds
Error
Water
72.86
N/A
Benzene
Chloroform
27.5
Methanol
22.7
Unknown Liquid
27.0
Theoretical Value of
Calculated Surface Tension at
Surface Tension at T,
dyne/cm
T, dyne/cm
(Benzene as Calibrating
Liquid)
%
Compounds
Error
Water
Benzene
72.86
N/A
N/A
Chloroform
27.5
Methanol
22.7
|Unknown Liquid
27.0
Based on all data available, what is the unknown liquid?
![The method of capillary rise is based on the height to which the liquid in the
capillary will rise before the force due to surface tension is balanced by the force
due to gravity. At this point:
Y =
rhpg
where:y= surface tension of the liquid in dynes/cm
r= inner radius of the capillary used, cm
h = displacement of the liquid in the capillary as referred to the
outside surface, cm (rise if liquid wets glass, fall if it does not)
p= density of the liquid, g/cm³
g = 981 cm/s² (gravitational acceleration)
Because of the difficulty of measuring the inner radius of the capillary, the
Usual method is to use a calibrating liquid (one whose surface tension can be
computed or determined from another source).
hxp
Yx = Yct
"hcl
[2]
x = refers to the liquid sought
cl = refers to the calibrating liquid
where:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7ea04500-e7bf-45ab-a67a-1b1350d8beab%2F7ee82617-6cc4-453d-a632-603c92f2f662%2Fhj2m4pv_processed.png&w=3840&q=75)
Transcribed Image Text:The method of capillary rise is based on the height to which the liquid in the
capillary will rise before the force due to surface tension is balanced by the force
due to gravity. At this point:
Y =
rhpg
where:y= surface tension of the liquid in dynes/cm
r= inner radius of the capillary used, cm
h = displacement of the liquid in the capillary as referred to the
outside surface, cm (rise if liquid wets glass, fall if it does not)
p= density of the liquid, g/cm³
g = 981 cm/s² (gravitational acceleration)
Because of the difficulty of measuring the inner radius of the capillary, the
Usual method is to use a calibrating liquid (one whose surface tension can be
computed or determined from another source).
hxp
Yx = Yct
"hcl
[2]
x = refers to the liquid sought
cl = refers to the calibrating liquid
where:
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 with 2 images
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