Determination of the Surface Tension of a Liquid by the Capillary Rise Method: A group of students enrolled in a Physical Chemistry Laboratory class performed an experiment on the determination of the surface tension of a liquid by the capillary rise method. The data gathered by the group are documented in the tables below. Solve for the unknown data for #s 1-12. Compounds Average Height, dm Density (e/ml) Water 0.16 0.9998 Benzene 0.08 0.7882 Chloroform 0.03 1.4592 Methanol 0.07 0.8707

Chemistry by OpenStax (2015-05-04)
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Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter10: Liquids And Solids
Section: Chapter Questions
Problem 20E: The density of liquid NH3 is 0.64 g/mL; the density of gaseous NH3 at STP is 0.0007 g/mL. Explain...
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Determination of the Surface Tension of a Liquid by the Capillary Rise Method: A
group of students enrolled in a Physical Chemistry Laboratory class performed
an experiment on the determination of the surface tension of a liquid by the
capillary rise method. The data gathered by the group are documented in the
tables below. Solve for the unknown data for #s 1-12.
Compounds Average Height, dm Density (e/ml)
Water
0.16
0.9998
Benzene
0.08
0.7882
Chloroform
0.03
1.4592
Methanol
0.07
0.8707
Compounds
Theoretical Value of Surface
Calculated Surface Tension at
% Error
20°C, dyne/cm
(Water as Calibrating Liquid)
Tension at 20°C, dyne/cm
Water
72.86
Benzene
28.88
1
28.39
4 1.69
19.71
5 28.32
6 -20.88
Chloroform
27.5
2
Methanol
22.7
3
27.44
Compounds
Theoretical Value of Surface
Calculated Surface Tension at
% Error
Tension at 20°C, dyne/cm
20°C, dyne/cm
(Benzene as Calibrating Liquid)
Water
72.86
10
Benzene
28.88
Chloroform
27.5
11
Methanol
22.7
9.
12
Transcribed Image Text:Determination of the Surface Tension of a Liquid by the Capillary Rise Method: A group of students enrolled in a Physical Chemistry Laboratory class performed an experiment on the determination of the surface tension of a liquid by the capillary rise method. The data gathered by the group are documented in the tables below. Solve for the unknown data for #s 1-12. Compounds Average Height, dm Density (e/ml) Water 0.16 0.9998 Benzene 0.08 0.7882 Chloroform 0.03 1.4592 Methanol 0.07 0.8707 Compounds Theoretical Value of Surface Calculated Surface Tension at % Error 20°C, dyne/cm (Water as Calibrating Liquid) Tension at 20°C, dyne/cm Water 72.86 Benzene 28.88 1 28.39 4 1.69 19.71 5 28.32 6 -20.88 Chloroform 27.5 2 Methanol 22.7 3 27.44 Compounds Theoretical Value of Surface Calculated Surface Tension at % Error Tension at 20°C, dyne/cm 20°C, dyne/cm (Benzene as Calibrating Liquid) Water 72.86 10 Benzene 28.88 Chloroform 27.5 11 Methanol 22.7 9. 12
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