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一、考题分析题目(2004年上海高考题)黄铜矿(主要成分CuFeS2)是提取铜的主要原料.(1)取12.5g黄铜矿样品,经测定含3.60g硫(杂质不含硫),则矿样中CuFeS2含量为
First, the question analysis topic (2004 Shanghai college entrance examination questions) chalcopyrite (the main component CuFeS2) is the main raw material for copper extraction. (1) Take 12.5g chalcopyrite sample, determined to contain 3.60g of sulfur (impurity does not contain sulfur) , the content of CuFeS2 in the sample is