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In: Chemistry

1. Antimony reacts with sulfur according to the following reaction: 2Sb(s) + 3S(s) → Sb2S3(s)

 

1. Antimony reacts with sulfur according to the following reaction:
2Sb(s) + 3S(s) → Sb2S3(s)
What is the mass percent yield from 2.57 g of Sb in excess S, if 1.72 g of Sb2S3 is obtained? Sb2S3 is 340. g/mol

2. For the following reaction at 25 oC, ΔHo = -1667 kJ and ΔSo = 184 J/K
A +4B → 3C + 3D What is ΔGo at 238 oC in kJ?

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