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Hydrogen sulfide decomposes according to the following reaction, for which
Kc = 9.30 x 10-8 at 700°C:
2H2S (g) ⇌ 2H2 (g) + S2 (g)
If 0.49 mol of H2S is placed in a 3.0-L container, what is the equilibrium concentration of H2(g) at 700°C?
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