9. The excess hydrogen produced by reacting sodium hydr

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9. The excess hydrogen produced by reacting sodium hydride with water, passed over hot mineral tenorite CuO weight 40 g Thus 6.07 ml of water was formed. Calculate the mass fraction of copper oxide (II) of the mineral (in%), considering that the impurities with hydrogen does not react.

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)


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