Calculate the percent composition of copper sulfide


A copper wire having a mass of 2.196 grams was allowed to react with an excess of sulfur. The excess sulfur was then burned, yielding SO2 gas. The mass of copper sulfide formed was 2.748 grams.

Calculate the percent composition of copper sulfide? Provide the percentages for both sulfur and copper. Determine the empirical formula of copper sulfide?

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Chemistry: Calculate the percent composition of copper sulfide
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