Chemistry

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A 1.00-kg sample of Sb2S3(s) and a 10.0-g sample of H2(g) are allowed to react in a 25.0-L container at 713 K. At equilibrium, 72.6 g H2S(g) is present. What is the value of Kp at 713 K for this reaction?

Sb2S3(s) + 3 H2(g) <----> 2Sb(s) + 3 H2S(g)

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