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To calibrate a cell, a student reads 125 Ω with a… | StemPy Lab
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To calibrate a cell, a student reads 125 Ω with a standard solution whose conductivity is 0.48 S/m. The same cell then reads 96 Ω with a 0.0625 mol/L solution of a salt. Which value is the molar conductivity of the salt?
Chemistry
Medium
High School (11–12)
Electrochemistry › Conductance, Electrolysis and Batteries
AP
A-Level
IB
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StemPy Lab
To calibrate a cell, a student reads
125
Ω
125\ \Omega
125
Ω
with a standard solution whose conductivity is
0.48
S/m
0.48\ \text{S/m}
0.48
S/m
. The same cell then reads
96
Ω
96\ \Omega
96
Ω
with a
0.0625
mol/L
0.0625\ \text{mol/L}
0.0625
mol/L
solution of a salt. Which value is the molar conductivity of the salt?
1.0
×
10
4
S cm
2
/
mol
1.0 \times 10^{4}\ \text{S cm}^2/\text{mol}
1.0
×
1
0
4
S cm
2
/
mol
1000
S cm
2
/
mol
1000\ \text{S cm}^2/\text{mol}
1000
S cm
2
/
mol
100
S cm
2
/
mol
100\ \text{S cm}^2/\text{mol}
100
S cm
2
/
mol
10
S cm
2
/
mol
10\ \text{S cm}^2/\text{mol}
10
S cm
2
/
mol
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← At one moment a cell reaction with n = 2 has E = 0.92 V, while its standard emf is 1.05 V. What is Δ G at that moment?
A cell filled with a weak monobasic acid of concentration 0.36 mol/L has a conductance of 0.96 mS. The acid is diluted to 0.090 mol/L and the same cell is used. The acid is so weak that α varies as 1/√c. What is the new conductance? →
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Electrochemistry › Conductance, Electrolysis and Batteries
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