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What is Ky for CN- (aq) + H20(1) = HCN(aq) + OH (aq)?​
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What is Ky for CN- (aq) + H20(1) = HCN(aq) + OH (aq)?​

What is Ky for CN- (aq) + H20(1) = HCN(aq) + OH (aq)?​-example-1
User Chris F Carroll
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7.4k points

1 Answer

5 votes

Answer:

Step-by-step explanation:

CN- (aq) + H₂0(l) = HCN(aq) + OH⁻ (aq)

In this reaction CN⁻ acts as base so

Kb = [ HCN][OH⁻] / [CN⁻ ]

Here water acts as medium so it is in excess hence its concentration remains constant . Hence its concentration is not taken into consideration.

(D) is the right choice.

User Marco Roy
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6.9k points
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