Asked by Donna
how to I figure how much copper is in 2.154 gram of copper sulfide?
Answers
Answered by
bobpursley
gramsCu= 2.154*percentcompositionCu in CuS
= 2.154* (atomicwtCu/(atomicWtCu+atomicWtS)
= 2.154* (atomicwtCu/(atomicWtCu+atomicWtS)
Answered by
drwls
Copper sulfide is CuS.
The ratio of the atomic weights of Copper and Sulfur is the ratio of the masses of those two elements.
That ratio is 63.5/32.0.
63.5/(63.5+32.0) = 63.5/95.5
= 66.5% of the mass is copper.
The ratio of the atomic weights of Copper and Sulfur is the ratio of the masses of those two elements.
That ratio is 63.5/32.0.
63.5/(63.5+32.0) = 63.5/95.5
= 66.5% of the mass is copper.
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