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Chemistry - Ionic Equilibrium Question with Solution | TestHub

ChemistryIonic EquilibriumpH of Strong and Weak Acids and BasesEasy2 minPYQ_2020

ChemistryEasysingle choice

If $C$ the concentration of a weak electrolyte, $α$ is the degree of ionization and $K_{a}$ is the acid ionization constant, then the correct relationship between $α, C$ and $K_{a}$ is

Options:

Answer:

Solution:

According to the Ostwald’s dilution formula $α^{2} = \frac{K (1 - α)}{C}$ . But for weak electrolytes α is very small. So that $(1 - α)$ can be neglected. So that $α = \sqrt{\frac{K_{a}}{C}}$ .

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Ionic EquilibriumSubtopic:pH of Strong and Weak Acids and Bases

⏱ 2mℹ️ Source: PYQ_2020

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