Of the following solutions, which has the greatest buffering capacity? A)0.521 M HC₂H₃O₂ and 0.217 M NaC₂H₃O₂ B)0.821 M HC₂H₃O₂ and 0.713 M NaC₂H₃O₂ C)0.365M HC₂H₃O₂ and 0.497 M NaC₂H₃O₂ D)0.121 M HC₂H₃O₂ and 0.116 M NaC₂H₃O₂

Question

Quizplus · Accepted Answer

The buffering capacity of a solution is directly proportional to the concentrations of both the weak acid and its conjugate base. Therefore, the solution with the greatest buffering capacity is the one with the highest concentrations of both the weak acid and its conjugate base. In this case, that is solution B.

Of the Following Solutions, Which Has the Greatest Buffering Capacity