Multiple Choice
A 25.0-mL sample of 0.150 M butanoic acid is titrated with a 0.150 M NaOH solution. What is the pH before any base is added? The Ka 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
Correct Answer:

Verified
Correct Answer:
Verified
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