Matching -A solution containing a weak acid (pK = 7.5)and its conjugate base at pH of 8.5 has a good capacity to buffer the addition of ______. A) hydrogen bond B) rotational C) H₃PO₄ D) H₂PO₄^– E) HPO₄ ^2– F) disordered G) positive entropy H) negative entropy I) higher electronegativity J) insoluble K) tetrahedral arrangement L) acid M) base N) only partially ionized

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Quizplus · Accepted Answer

M  The solution is a buffer system with a weak acid and its conjugate base, and it is at a pH higher than the pK of the acid. This means it can effectively buffer the addition of both acids (L) and bases (M).

Matching -A Solution Containing a Weak Acid (PK = 7.5)and Its