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July 29, 2015

Homework Help: chemistry 106

Posted by Tanisha on Wednesday, March 3, 2010 at 6:32pm.

The first step in the industrial recovery of zinc from the zinc sulfide ore is roasting, that is, the conversion of ZnS to ZnO by heating. 2 ZnS(s) + 3 O2(g) → 2 ZnO(s) + 2 SO2(g) ΔH = -879 kJ/mol

Calculate the heat evolved (in kJ) per gram of ZnS roasted.

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