A Buffer Solution with a PH of 4

question 52

Multiple Choice

A buffer solution with a pH of 4.40 is prepared with 0.78 M Na C₂H₃O₂ and ________ M HC₂H₃O₂. The K_a of HC₂H₃O₂ is 1.8 × 10^-5.

• A)1.7
• B)3.5
• C)4.1 × 10⁴
• D)0.35
• E)0.86

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