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One step in the production of copper is to heat copper (I) sulfide, Cu2S, with oxygen. This
produces copper (I) oxide and sulfur dioxide gas according to the following reaction:

2Cu2S(s)
+ 3O2(g)
​→ 2Cu2O(s)

+ 2SO2(g)

What is the greatest mass of SO2 that can be produced from 15.0 mol Cu2S?