hydrogen sulfide is a pungent, poisonous gas. At 1400 K, an equilibrium mixture was found to contain 0.013 mol/L of hydrogen, 0.18 mol/L of hydrogen sulfide and an undetermined amount of sulfur in the form of S2 gas. If the value of Kc is 2.40 x10^-4 at this temperature what concentration of S2 is present at equilibrium?

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