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A 250-ML Sample of 0

Question 21

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 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 of hydrocyanic acid is 4.9 × 10<sup>-10</sup>. A) 5.07 B) 8.6 × 10<sup>-6</sup> C) 9.31 D) 8.49 E) 3.1 × 10<sup>8</sup> 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

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