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    Chemistry Study Set 4
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    Exam 15: Aqueous Equilibria: Acids and Bases
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    The PH of 0
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The PH of 0

Question 30

Question 30

Multiple Choice

The pH of 0.255 M HCN is 4.95.What is the value of Ka for hydrocyanic acid?


A) 1.3 × 10-10
B) 4.9 × 10-10
C) 1.1 × 10-5
D) 4.4 × 10-5

Correct Answer:

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