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5. The following reaction begins initially with 0.500 mol of H2 and 0.500 mol of Br2 in a 2.0 L flask. The reaction mixture has Kc = 64 at 427 degrees C. What are the equilibrium concentrations of each species (in M to two decimal places) at this temperature? H2 (g) + Br2 (g) ⇌ 2HBr (g)