(Solved): The following reaction was performed in a sealed vessel at 718C H2(g)+I2(g)2HI(g) I ...

The following reaction was performed in a sealed vessel at $$718^{?}\mathrm{C}$$ $${\mathrm{H}}_2(\mathrm{g})+{\mathrm{I}}_2(\mathrm{g})?2\mathrm{HI}(\mathrm{g})$$ Initially, only $${\mathrm{H}}_2$$ and $${\mathrm{I}}_2$$ were presert at concentrations of $$\left[{\mathrm{H}}_2\right]=3.45\mathrm{M}$$ and $$\left[{\mathrm{I}}_2\right]=2.50\mathrm{M}$$ The equilbnium concentration of $${\mathrm{I}}_2$$ is $$0.0900\mathrm{M}$$. What is me equilibrium constant, $$K_e$$, for the reaction at this temperature? Express your answer numerically.