A 250 ML Sample of 0

question 125

Multiple Choice

A 25.0 mL sample of 0.150 mol L^-1 butanoic acid is titrated with a 0.150 mol L^-1 NaOH solution. What is the pH before any base is added? Butanoic acid is monoprotic. The K_a of butanoic acid is 1.5 × 10^-5.

• A)2.83
• B)1.5 × 10^-3
• C)4.82
• D)4.00
• E)1.0 × 10⁴

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