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Use the two given equations to determine the K3 value for the desired equilibrium equation. Given...

Use the two given equations to determine the K3 value for the desired equilibrium equation.

Given 1: 2H2O(l)= H3O+(aq)+OH-(aq) K1=1.00X10^-14

Given 2: HCN(aq)+H2O(l)=H3O+(aq)+CN-(aq) K2=4.90X10^-10

Given 3: CN-(aq)+H2O(l)=HCN(aq)+OH-(aq) K3=???

What is the K3 value?

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