A sample of pure Cu(3.18g) heated in a stream of oxygen for sometime g – InterviewSolution

1.	A sample of pure Cu(3.18g) heated in a stream of oxygen for sometime gains in mass with the formation of Black oxide of copper(CuO) . The final mass is 3.92g . What percent of copper remains unoxidised
Answer» A sample of pure Cu(3.18g) heated in a stream of oxygen for sometime gains in mass with the formation of Black oxide of copper(CuO) . The final mass is 3.92g . What percent of copper remains unoxidised

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