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The Only Compound Containing Copper in an Ore Is Chalcopyrite,CuFeS2

Question 65

Multiple Choice

The only compound containing copper in an ore is chalcopyrite,CuFeS2.If a 91.0 g-sample of this ore contains 15.0 % of copper,what is the percentage of CuFeS2 in the sample?


A) 16.5%
B) 4.73%
C) 0.433%
D) 39.4%
E) 60.6%

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