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The Ka of hydrocyanic acid , HCN, is 5.0...

The `K_a` of hydrocyanic acid , HCN, is `5.0xx10^(-10)`.What is the pH of 0.050 M HCN(aq)?

A

Between 3.5 and 4.5

B

Between 5.0 and 5.5

C

Between 9.0 and 9.5

D

Between 10.5 and 11.0

Text Solution

Verified by Experts

The correct Answer is:
b
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