1. a. At a certain temperature, Kc is 4.13 x 10-2 for the equilibrium: 12 (g) + Br2 g) Assume that equilibrium is established at the above temperature by adding only IBr (g) to the reaction flask. What are the concentrations of 12 (g) and Br2 (g) in equilibrium with 0.0124 moles/liter of IBr(g)? 2 IBr (g) Setup: b. What was the initial concentration of IBr before equilibrium was established?

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