289. At a temperature of 450 K for the dissociation reaction
2HI(g) = H2(g) I2(g)
according to reference data, the equilibrium constant is 0.02. 255.8 g of HI was introduced into an evacuated vessel with a volume of 10 liters at 450 K. How much iodine, (in grams) will be obtained after equilibrium is established?

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