Which Buffer Solution Has the Lowest PH (HF Has K_a

question 48

Multiple Choice

Which buffer solution has the lowest pH (HF has K_a = 7.2 × 10^-4) ?

• A)0.10 M HF and 0.10 M NaF
• B)0.20 M HF and 0.20 M NaF
• C)0.20 M HF and 0.10 M NaF
• D)0.10 M HF and 0.20 M NaF
• E)All of the buffer solutions described above have the same pH.

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