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Hybridisation

Cu2S and Ag2S...

Question

Cu₂S and Ag₂S are isomorphous. The percentages of sulphur in these compounds are 20.14 % and 12.94 % respectively. If the atomic weight of Cu is 63.5 , calculate atomic weight of Ag.

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Solution

1. Isoamorphous means closely similar in shape.
2. $\frac{A t o m i c w t o f A g i n A g_{2} S}{A t m i c w t o f C u i n C u_{2} S} = \frac{% o f s u l p h u r i n A g_{2} S}{% o f s u l p h u r i n C u_{2} S} A t o m i c w t o f A g_{2} S = \frac{12.94}{20.14} \times 63.5 = 107.8$

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