What Is the Buffer Range (For an Effective 2

question 123

Multiple Choice

What is the buffer range (for an effective 2.0 pH unit) for a benzoic acid/sodium benzoate buffer? [Ka for benzoic acid is 6.3 × 10^-5]

• A)8.8 - 10.8
• B)7.4 - 9.4
• C)5.3 - 7.3
• D)4.7 - 6.7
• E)3.2 - 5.2

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