For the hydrolysis of a salt derived from a weak acid and a weak base (WA-WB), which of the following mathematical expressions correctly define the system parameters? (Assuming degree of hydrolysis )

Question

For the hydrolysis of a salt derived from a weak acid and a weak base (WA-WB), which of the following mathematical expressions correctly define the system parameters? (Assuming degree of hydrolysis $h \ll 1$)

Prashant Kotian · Accepted Answer

Correct answer: A,B,C. For a WA-WB salt, both cation and anion hydrolyze. The hydrolysis constant is . The degree of hydrolysis is , which is independent of concentration (making D incorrect). The pH relies on the difference between acid and base strengths: .

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