A Buffer Was Prepared by Mixing 0

question 73

Multiple Choice

A buffer was prepared by mixing 0.60 moles of HF and 0.40 moles of NaF in enough water to make 1.00 L of solution. What is the pH of this solution?
K _a = 3.5×10 ^{- 4} for HF.

• A) 10.72
• B) 3.48
• C) 3.58
• D) 10.42
• E) 3.28

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