A 0.01 M solution of KCl has a conductivity of 1.41 x 10-3 S cm-1. A conductivity cell filled with this solution has a resistance of 4,216 ohm. When the same cell was filled with a solution of HCl, the resistance was measured to be 1,033 ohm. (a) What is the cell constant? (b) What is the conductivity of the HCl solution? [5.94; 5.75 x 10-3]
A 0.01 M solution of KCl has a conductivity of 1.41 x 10-3 S cm-1. A conductivity cell filled with this solution has a resistance of 4,216 ohm. When the same cell was filled with a solution of HCl, the resistance was measured to be 1,033 ohm. (a) What is the cell constant? (b) What is the conductivity of the HCl solution? [5.94; 5.75 x 10-3]
Chapter21: Potentiometry
Section: Chapter Questions
Problem 21.21QAP
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Please help answer #2. Thank you.
![[8.68; 0.692]
2. A 0.01 M solution of KCl has a conductivity of 1.41 x 10-3 S cm-1. A conductivity cell
filled with this solution has a resistance of 4,216 ohm. When the same cell was filled
with a solution of HCl, the resistance was measured to be 1,033 ohm. (a) What is the
cell constant? (b) What is the conductivity of the HCl solution?
[5.94; 5.75 x 10-3]
3. For a 0.005 M aqueous solution of SrCl, at 298 K, the conductivity is 1.242 x 10-3 S
cm-1. What is the molar conductivity of this solution?
[248.4]
4. A conductivity cell was calibrated with 0.02 M KCl solution (K = 0.002768 S cm-1)
%3D
and the resistance at 298 K was 457.3 ohms. When a 0.01 M solution of CaCP was
placed in the cell, the measured resistance was 1050 ohms. Calculate (a) the cell
constant; (b) the conduetivity and (c) the molar conductivity of the CaCl, solution.
[1.266: 1.206 x 10-3; 120.6]
Tha limiting molar conduntivition.
Ao ofKCIUNO. and
140 Com) mol-1
DFocus
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English (United States
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Transcribed Image Text:[8.68; 0.692]
2. A 0.01 M solution of KCl has a conductivity of 1.41 x 10-3 S cm-1. A conductivity cell
filled with this solution has a resistance of 4,216 ohm. When the same cell was filled
with a solution of HCl, the resistance was measured to be 1,033 ohm. (a) What is the
cell constant? (b) What is the conductivity of the HCl solution?
[5.94; 5.75 x 10-3]
3. For a 0.005 M aqueous solution of SrCl, at 298 K, the conductivity is 1.242 x 10-3 S
cm-1. What is the molar conductivity of this solution?
[248.4]
4. A conductivity cell was calibrated with 0.02 M KCl solution (K = 0.002768 S cm-1)
%3D
and the resistance at 298 K was 457.3 ohms. When a 0.01 M solution of CaCP was
placed in the cell, the measured resistance was 1050 ohms. Calculate (a) the cell
constant; (b) the conduetivity and (c) the molar conductivity of the CaCl, solution.
[1.266: 1.206 x 10-3; 120.6]
Tha limiting molar conduntivition.
Ao ofKCIUNO. and
140 Com) mol-1
DFocus
O PO
English (United States
search
人 w
口 )
DELL
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