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Value of \(\land_{m}^{0}\) for \(\) \(SrCl_{2}\) (strong electrolyte) in water at 25°C from the data below is:
| Conc. (mol/litre) | 0.25 | 1 |
| \(\land_{m} \Omega^{- 1 } c m^{2 } m o l^{- 1}\) | 260 | 250 |
1. 270 Ω-1 cm2 mol-1
2. 260 Ω-1 cm2 mol-1
3. 250 Ω-1 cm2 mol-1
4. 255 Ω-1 cm2 mol-1
Subtopic: Kohlrausch Law & Cell Constant |
Level 3: 35%-60%
Hints
The molar conductivity of 0.05 M NH4Cl is 20 S cm2 mol-1. The molar conductivities of \(NH^+_4\) and \(Cl^-\) ions at infinite dilution are 74 S cm2 mol-1 and 26 S cm2 mol-1, respectively. The dissociation constant of NH4Cl will be:
| 1. | \(2.5 \times 10^{-3}\) | 2. | \(2 \times 10^{-3}\) |
| 3. | \(2.5 \times 10^{-4}\) | 4. | \(2 \times 10^{-4}\) |
Subtopic: Kohlrausch Law & Cell Constant |
Level 3: 35%-60%
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Hints
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