CH4(g) into a 2.00 L container and the methane forms ethyne, C2H2(g) and hydrogen gas, H2(g). At equilibrium, the container was found to contain 0.045 mol/L C2H2. a) Calculate the initial concentration of CH4. Then complete an ICE Table to organize the initial, change and equilibrium concentrations for this equilibrium system. Show any calculations needed.  2CH4(g) ⇄ C2H2(g) + 3H2(g) b) Calculate the equilibrium constant, Keq, for this equilibrium. Show all work. c) What is the equilibrium concentration of H2(g) ?

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