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23. Solving a chemistry problem
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Uploaded: 12.05.2023
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Uploaded: 12.05.2023
Content: 5.rar 17,85 kB
Product description
5. A technical preparation of copper weighing 2 g was dissolved in concentrated nitric acid. The resulting solution was treated with alkali. After calcination, a precipitate with a mass of 2.4 g was formed. Find the mass fraction of copper in the preparation.
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