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Buffer capacity is a measure of a buffer solution\'s resistance to changes in pH as strong acid or base is added. Suppose that you have 125 mL of a buffer that is 0.400 M in both propanoic acid (C2H5COOH) and its conjugate base (C2H5COO–). Calculate the maximum volume of 0.290 M HCl that can be added to the buffer before its buffering capacity is lost.