Fr4aneejbetbonesiam Fr4aneejbetbonesiam

26-08-2016
Biology

Answered

A buffer contains the weak acid HA and its conjugate base A-. The weak acid has a p Ka of 4.82 and the buffer has a pH of 4.25. This is true of the relative concentration of the weak acid and its conjugate base in the buffer.

A[HA} > [A-]
B[Ha} < [A-]
C[HA]=[A-]

Verified Answer :

taskmasters taskmasters

29-08-2016

From the henderson-hasslebalch equation: pH=pKa+log[A−]/[HA]

it's apparent that when pKa=pH, c. [HA]=[A^-].

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