A Buffer Solution Contains 0

question 276

Multiple Choice

A buffer solution contains 0.75 mol KH₂PO₄ and 0.75 mol K₂HPO₄ .
What is the pH after 0.10 mol KOH is added to 1.00 L of this buffer? The pK_a of H₂PO₄^? is 7.21.

• A) 6.91
• B) 6.67
• C) 7.21
• D) 7.33
• E) 7.09

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