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

question 17

Multiple Choice

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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