Calculate the concentration of Cl- ions in each of the standard solutions made. Plot a calibration graph of molar conductance versus [CI-] 1/2. Identify the working range of the instrument, the limiting molar conductivity and the value of the constant K from Kohlrausch's law. Measure the conductance of the unknown solutions and hence [NaCl] /M 0.1 (101) [NAC]/ppm 5,850 Conductivity/μs Potential/mV 8610 -32.3 0.01 (10-2) 585 928 20.5 0.001 (10-3) 58.5 102.4 76.9 0.0001 (104) 5.85 14.02 133.3 0.00001 (10-5) 0.585 3.2 172.9 0.000001 (10-6) 0.0585 2.32 181.9 Unknown A 449 26.3 Unknown B 45.4 89.9

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Calculate the concentration of Cl- ions in each of the
standard solutions made. Plot a calibration graph of
molar conductance versus [CI-] 1/2. Identify the working
range of the instrument, the limiting molar conductivity
and the value of the constant K from Kohlrausch's law.
Measure the conductance of the unknown solutions
and hence
[NaCl] /M
0.1
(101)
[NAC]/ppm
5,850
Conductivity/μs
Potential/mV
8610
-32.3
0.01
(10-2)
585
928
20.5
0.001 (10-3)
58.5
102.4
76.9
0.0001 (104)
5.85
14.02
133.3
0.00001 (10-5)
0.585
3.2
172.9
0.000001 (10-6)
0.0585
2.32
181.9
Unknown A
449
26.3
Unknown B
45.4
89.9
Transcribed Image Text:Calculate the concentration of Cl- ions in each of the standard solutions made. Plot a calibration graph of molar conductance versus [CI-] 1/2. Identify the working range of the instrument, the limiting molar conductivity and the value of the constant K from Kohlrausch's law. Measure the conductance of the unknown solutions and hence [NaCl] /M 0.1 (101) [NAC]/ppm 5,850 Conductivity/μs Potential/mV 8610 -32.3 0.01 (10-2) 585 928 20.5 0.001 (10-3) 58.5 102.4 76.9 0.0001 (104) 5.85 14.02 133.3 0.00001 (10-5) 0.585 3.2 172.9 0.000001 (10-6) 0.0585 2.32 181.9 Unknown A 449 26.3 Unknown B 45.4 89.9
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