Consider the equilibrium system described by the chemical reaction below. A mixture of gas containing only N2 and H2 is reacted in a vessel at high temperature. At equilibrium, the 5.0 M H2, 8.0 M N2, and 4.0 M NH3 are present. Determine the initial concentrations of H2 and N2 that were present in the vessel. N2(g) + 3 H2(g) = 2 NH3(g). Based on the given values, fill in an ICE table to determine concentrations of all reactants and products.