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A conductivity cell has plates of area A, a distance l… | StemPy Lab
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A conductivity cell has plates of area A, a distance l apart. With a certain solution it reads 880 Ω. The plates are changed for plates of area 2A, a distance l/2 apart, and the same solution is used. What does the cell read now?
Chemistry
Hard
High School (11–12)
Electrochemistry › Conductance, Electrolysis and Batteries
JEE Main
AP
A-Level
IB
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StemPy Lab
A conductivity cell has plates of area
A
A
A
, a distance
l
l
l
apart. With a certain solution it reads
880
Ω
880\ \Omega
880
Ω
. The plates are changed for plates of area
2
A
2A
2
A
, a distance
l
/
2
l/2
l
/2
apart, and the same solution is used. What does the cell read now?
220
Ω
220\ \Omega
220
Ω
440
Ω
440\ \Omega
440
Ω
1760
Ω
1760\ \Omega
1760
Ω
3520
Ω
3520\ \Omega
3520
Ω
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← A 0.0036 mol/L solution of a weak monobasic acid has a conductivity of 0.0063 S/m. The limiting molar conductivity of the acid is 350 S cm²/mol. What is the pH of the solution?
A strong 1:1 electrolyte has Λm = 127.5 S cm²/mol at 0.0036 mol/L and 123.0 S cm²/mol at 0.0144 mol/L. Using the straight-line law, what is Λm at 0.0324 mol/L? →
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