Two Buffer Solutions Are Prepared Using Acetic Acid and Sodium

question 21

Multiple Choice

Two buffer solutions are prepared using acetic acid and sodium acetate. Solution A contains 20.0 g of acetic acid (CH₃COOH) and 5.0 g of sodium acetate CH₃COONa) . Solution B contains 10.0 g of acetic acid and 25.0 g of sodium acetate. What is the difference between the pH values of these two solutions? For acetic acid, K_a = 1.8 × 10⁻⁵.

• A)0.0
• B)1.0
• C)2.0
• D)2.3
• E)4.6

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