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April 23, 2014

Homework Help: Mad percent of CuS and Cu2S in an ore sample

Posted by Rose Bud on Monday, September 24, 2012 at 2:59pm.

Suppose an ore sample contains 11.01 % impurity in addition to a mixture of Cu2S and CuS. Heating 102.5 g of the mixture produces 74.90 g of solid which is 88.18 % copper. What is the mass percent CuS in the ore?

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