Silver sulphide and cuprous sulphide are...

Silver sulphide and cuprous sulphide are isomorphous compounds. Silver sulphide contains 12.94% off sulphur while cuprous sulphide consists of 20.14% sulphur. Determine equivalent mass of copper.

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Valency of Ag in silver sulphide `(Ag_(2)S)=1`. As, cuprous sulphide and silver sulhide are isomorphous compounds, so valecy of copper in cuprous sulphide is 1.
20.14g sulphur combines with (100-20.14)g
=79.86g of Cu
`therefore`Equivalent mass of `Cu=(79.66)/(20.14)xx16=63.44" "[E_(S)=16]`.

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