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Chemistry, 01.12.2020 20:50 rosieposie27

In a lifetime, the average American uses more than half a ton(>500kg) of copper in coins , plumbing and wiring. Copper ia obtained from sulfide ores, such as chalcocite[copper(I) sulfide] by a multistep process. After initial grinding, the ore is "roasted" (heated strongly with oxygen gas) to form powdered copper(I) oxide and gaseous sulfur dioxide. How many moles of oxygen are required to roast 10.0 mol of copper(I) sulfide?

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