Question
If α is the degree of ionization, C the concentration of a weak electrolyte and Ka the acid ionization constant, then the correct relationship between α, C and Ka is
Answer: Option C
:
C
According to the Ostwald's dilution formula α2−Ka(1−α)C. But for weak
electrolytes αis very small. So that (1−α) can be taken as 1. So that α=√KaC.
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:
C
According to the Ostwald's dilution formula α2−Ka(1−α)C. But for weak
electrolytes αis very small. So that (1−α) can be taken as 1. So that α=√KaC.
Was this answer helpful ?
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