63. In the reaction of a mixture of metallic zinc and z

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63. In the reaction of a mixture of metallic zinc and zinc carbonate with hydrochloric acid is recovered gas volume of 6.72 dm3 (STP). After the combustion gas formed in the air and condensing water vapor its volume decreased to 4.48 dm3 (STP). Calculate the mass fraction (%) of zinc in the feed mixture.

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

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