Redox Reactions And Electrochemistry Ques 583

Question: The equivalent conductance at infinite dilution of a weak acid such as HF

Options:

A) can be determined by extrapolation of measurements of dilute solutions of $ HCl,HBr $ and HI

B) can be determined by measurement of very dilute HF solutions

C) can be determined from measurements of dilute solutions of $ NaF,NaCl $ and $ HCl $

D) is an undefined quantity

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Answer:

Correct Answer: C

Solution:

[c] Kohlrausch Law, $ {\Lambda_{eq}}( NaF )+{\Lambda_{eq}}( HCl )- $ $ {\Lambda_{eq}}(NaCl)={\Lambda_{eq}}(HF) $



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