1. A conductivity cell filled with 0.01 M KCl gives at 273 Ka resistance of 11,210 ohms. The conductivity of 0.01 M KCl at 273 K is 7.74 x 104 S cm-1. The distance between the electrodes in the cell is 6 cm. Calculate (a) the cell constant, and (b) the average cross-section area of the electrodes. [8.68; 0.692]
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Please help me answer 1. Thank you.
![1. A conductivity cell filled with 0.01 M KCl gives at 273 Ka resistance of 11,210 ohms.
The conductivity of 0.01 M KCl at 273 K is 7.74 x 104 S cm-!. The distance between
the electrodes in the cell is 6 cm. Calculate (a) the cell constant, and (b) the average
cross-section area of the electrodes.
[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 SrCl2 at 298 K, the conductivity is 1.242 x 10-3 S
cm-1
What is the molar cronductivitv of this solution?
United States)
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