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Question
In the plot of molar conductivity (∧m) vs square root of concentration (c1/2), following curves are obtained for two electrolytes A and B:
Answer the following:
(i) Predict the nature of electrolytes A and B.
(ii) What happens on extrapolation of ∧m to concentration approaching zero for electrolytes A and B?
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Solution
(i)
A = Strong electrolyte
B = Weak electrolyte
(ii) On extrapolation of these graphs they cut the Y-axis it means concentration is approaching zero and at that point, we will say infinite dilution of their respective A and B.
When A and B cut on Y-axis then we will say molar conductivity of A and B at infinite dilution.
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| Concentration/M | 0.001 | 0.010 | 0.020 | 0.050 | 0.100 |
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