67. The mixture of metal sulfide and metal was complete

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67. The mixture of metal sulfide and metal was completely dissolved in 10% hydrochloric acid, THe 11.2 l (n. Y.) Of gas. When added to the resultant solution, a solution of the red blood salts formed precipitate is blue. By passing the evolved gas through a solution of an excess of lead nitrate produced 47.8 g of a black precipitate. Determine the mass fractions of the components of the mixture.

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


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