04. Conductance and Conductor
ELECTROCHEMISTRY

276219 Which of the following expressions correctly represents the equivalent conductance at infinite dilution of Al2(SO4)3 ?. Given that ΛAl3+ and ΛSO42 are the equivalent conductances at infinite dilution of the respective ions.

1 2ΛAl3++3ΛSO42
2 ΛAl3++ΛSO42
3 (ΛAl3++ΛSO42)×6
4 13ΛAl3++12ΛSO42
ELECTROCHEMISTRY

276222 A conductivity cell has been calibrated with a 0.01M 1 : 1 electrolyte solution (specific conductance, k=1.25×103 S cm1 ) in the cell and the measured resistance was 800Ω at 25C. The cell constant will be

1 1.02 cm1
2 0.102 cm1
3 1.00 cm1
4 0.5 cm1
ELECTROCHEMISTRY

276224 At 25C, the molar conductance of 0.007M hydrofluoric acid is 150mhocm2 mol1 and it's A0 m=500mhocm2 mol1 The value of the dissociation constant of the acid at the given concentration at 25C is

1 7×104M
2 7×105M
3 9×103M
4 9×104M
ELECTROCHEMISTRY

276226 Molar conductances of BaCl2,H2SO4 and HCl at infinite dilutions are x1,x2 and x3 respectively. Equivalent conductance of BaSO4 at infinite dilution will be:

1 (x1+x2x3)/2
2 x1+x22x3
3 (x1x2x3)/2
4 (x1+x22x3)/2
ELECTROCHEMISTRY

276219 Which of the following expressions correctly represents the equivalent conductance at infinite dilution of Al2(SO4)3 ?. Given that ΛAl3+ and ΛSO42 are the equivalent conductances at infinite dilution of the respective ions.

1 2ΛAl3++3ΛSO42
2 ΛAl3++ΛSO42
3 (ΛAl3++ΛSO42)×6
4 13ΛAl3++12ΛSO42
ELECTROCHEMISTRY

276222 A conductivity cell has been calibrated with a 0.01M 1 : 1 electrolyte solution (specific conductance, k=1.25×103 S cm1 ) in the cell and the measured resistance was 800Ω at 25C. The cell constant will be

1 1.02 cm1
2 0.102 cm1
3 1.00 cm1
4 0.5 cm1
ELECTROCHEMISTRY

276224 At 25C, the molar conductance of 0.007M hydrofluoric acid is 150mhocm2 mol1 and it's A0 m=500mhocm2 mol1 The value of the dissociation constant of the acid at the given concentration at 25C is

1 7×104M
2 7×105M
3 9×103M
4 9×104M
ELECTROCHEMISTRY

276226 Molar conductances of BaCl2,H2SO4 and HCl at infinite dilutions are x1,x2 and x3 respectively. Equivalent conductance of BaSO4 at infinite dilution will be:

1 (x1+x2x3)/2
2 x1+x22x3
3 (x1x2x3)/2
4 (x1+x22x3)/2
ELECTROCHEMISTRY

276219 Which of the following expressions correctly represents the equivalent conductance at infinite dilution of Al2(SO4)3 ?. Given that ΛAl3+ and ΛSO42 are the equivalent conductances at infinite dilution of the respective ions.

1 2ΛAl3++3ΛSO42
2 ΛAl3++ΛSO42
3 (ΛAl3++ΛSO42)×6
4 13ΛAl3++12ΛSO42
ELECTROCHEMISTRY

276222 A conductivity cell has been calibrated with a 0.01M 1 : 1 electrolyte solution (specific conductance, k=1.25×103 S cm1 ) in the cell and the measured resistance was 800Ω at 25C. The cell constant will be

1 1.02 cm1
2 0.102 cm1
3 1.00 cm1
4 0.5 cm1
ELECTROCHEMISTRY

276224 At 25C, the molar conductance of 0.007M hydrofluoric acid is 150mhocm2 mol1 and it's A0 m=500mhocm2 mol1 The value of the dissociation constant of the acid at the given concentration at 25C is

1 7×104M
2 7×105M
3 9×103M
4 9×104M
ELECTROCHEMISTRY

276226 Molar conductances of BaCl2,H2SO4 and HCl at infinite dilutions are x1,x2 and x3 respectively. Equivalent conductance of BaSO4 at infinite dilution will be:

1 (x1+x2x3)/2
2 x1+x22x3
3 (x1x2x3)/2
4 (x1+x22x3)/2
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ELECTROCHEMISTRY

276219 Which of the following expressions correctly represents the equivalent conductance at infinite dilution of Al2(SO4)3 ?. Given that ΛAl3+ and ΛSO42 are the equivalent conductances at infinite dilution of the respective ions.

1 2ΛAl3++3ΛSO42
2 ΛAl3++ΛSO42
3 (ΛAl3++ΛSO42)×6
4 13ΛAl3++12ΛSO42
ELECTROCHEMISTRY

276222 A conductivity cell has been calibrated with a 0.01M 1 : 1 electrolyte solution (specific conductance, k=1.25×103 S cm1 ) in the cell and the measured resistance was 800Ω at 25C. The cell constant will be

1 1.02 cm1
2 0.102 cm1
3 1.00 cm1
4 0.5 cm1
ELECTROCHEMISTRY

276224 At 25C, the molar conductance of 0.007M hydrofluoric acid is 150mhocm2 mol1 and it's A0 m=500mhocm2 mol1 The value of the dissociation constant of the acid at the given concentration at 25C is

1 7×104M
2 7×105M
3 9×103M
4 9×104M
ELECTROCHEMISTRY

276226 Molar conductances of BaCl2,H2SO4 and HCl at infinite dilutions are x1,x2 and x3 respectively. Equivalent conductance of BaSO4 at infinite dilution will be:

1 (x1+x2x3)/2
2 x1+x22x3
3 (x1x2x3)/2
4 (x1+x22x3)/2