If a Chemist Wishes to Prepare a Buffer That Will

question 34

Multiple Choice

If a chemist wishes to prepare a buffer that will be effective at a pH of 3.00 at 25°C,the best choice would be an acid component with a K_a equal to

• A) 9.10 × 10^-2.
• B) 9.10 × 10^-4.
• C) 9.10 × 10^-6.
• D) 9.10 × 10^-8.
• E) 9.10 × 10^-10.

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