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(Solved): What is the pka of a buffer is [HA] \( =.25 \mathrm{M},[\mathrm{NaA}]=.30 \mathrm{M} \), and the \( ...
![What is the pka of a buffer is [HA] \( =.25 \mathrm{M},[\mathrm{NaA}]=.30 \mathrm{M} \), and the \( \mathrm{pH} \) of the sol](https://media.cheggcdn.com/study/afd/afd416e5-35b8-4186-9a9e-d0b7d13deb92/image)
What is the pka of a buffer is [HA] \( =.25 \mathrm{M},[\mathrm{NaA}]=.30 \mathrm{M} \), and the \( \mathrm{pH} \) of the solution is \( 4.92 \). \( 4.84 \) \( 5.02 \) \( 4.92 \) \( 5.06 \)