phopho5 phopho5

12-03-2024
Chemistry

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Silver jewellery is oxidised and forms silver sulfide, which is seen as a black precipitate o the surface of the metal. The black precipitate can be removed by another redox reaction F 3Ag₂S(s) + 2Al(s)→ 6Ag(s) + ALS,(s) Calculate the mass of aluminium necessary to remove 0.25 g of the Ag₂S precipitate.

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