Multiple Choice
A 25.0-mL sample of 0.150 M hydrocyanic acid is titrated with a 0.150 M NaOH solution. What is the pH before any base is added? The Ka of hydrocyanic acid is 4.9 × 10-10.
A) 5.07
B) 8.6 × 10-6
C) 9.31
D) 8.49
E) 3.1 × 108
Correct Answer:
Verified
Correct Answer:
Verified
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