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Calculate the residue obtained on strong...

Calculate the residue obtained on strongly heating `2.76 Ag_(2) CO_(3)`.

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`underset({:(276 g),((108 xx 2 + 12 + 16 xx 3)):})(Ag_(2)CO_(3)) overset(Delta)rarr underset({:(216 g),((108 xx 2)):})(2 Ag) + CO_(2) + 1//2O_(2)`
`276 g of Ag_(2) CO_(3) implies 216 g of Ag`
`2.76 g of Ag_(2) CO_(3) implies 2.16 g of Ag`
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