Question

What is the weight of the residue obtained after heating of 2.76 g of silver carbonate?

Answer 1

unlike other metals carbonate that usually decomposes into metal oxide liberating carbon dioxide , silver carbonate on heating decomposes into elemental siver liberating
mixtue of carbon dioxide and oxygen gas as
Ag2CO3 (s) + 2Ag (s) +CO2 +1/2 (g) MW = 276g 2×108 = 216
hence 2.76 g of silver carbonate on heating will give 216/ 276 ×2.86 = 2.16 g Ag as residue
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Answer 2

answer is 2.32gram of the question