A mixture of 1.374 g of H2 and 70.31 g of Br_2 is heated in a 2.00 L vessel at 700K. The reactants form hydrogen bromide and at equilibrium the vessel is found to contain 0.566 g of hydrogen gas. Calculate K_c for this system. At equilibrium, does this process favor reactants or products? 8. At 2000 degree C, nitrogen monoxide gas decomposes into its elements with Kc = 2.4 times 10^3. If the initial reactant concentration was 0.200 M, what are the equilibrium concentrations of each species? 9. At 900 degree C, Kc = 1.08 times 10^-2 for the reaction CaCO_3(s) doubleheadarrow CaO_(s) + CO_2(g) A mixture consisting of 30.5 g of CaC0_3, 25.5 g of CaO and 6.58 g of CO_2 is placed into a 10.0 L container. Is the mixture already at equilibrium? If not, will it form additional products or reactants?