1.75 moles of H2O2 were placed in a 2.50 L reaction chamber at 307ºC. After equilibrium was reached, 1.20 moles of H2O2 remained. Calculate the equilibrium constant, Kc, for the reaction
2 H2O2(g) ⇋ 2 H2O(g) + O2(g).
A) 2.0 x 10–4
B) 2.3 x 10–2
C) 2.4 x 10–3
D) 5.5 x 10–3
E) 3.9 x 10–4
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