Consider a buffer composed of the weak acid HA and its conjugate base A−Which pair of concentrations results in the most effective buffer?
Consider a buffer composed of the weak acid HA and its conjugate base A−. Which pair of concentrations results in the most effective buffer?
A. 0.60 M HA; 0.60 M A−
B. 0.88 M HA; 0.18 M A−
C. 0.18 M HA; 0.88 M A−
D. 0.08 M HA; 0.08 M A−
1 Answers
Buffer solution ....
By "effective" are you referring to the buffer with the greatest buffer capacity? If that is the case, then choice A is the most effective buffer solution. The pH of the buffer will be pKa, and it will have the most "acid" and "base" to react with added acids or bases.
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