Q.
2.76g silver carbonate on being strongly heated yields a residue weighing ____?
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a
2.16g
b
2.48g
c
2.32g
d
2.64g
answer is A.
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Detailed Solution
Ag2CO3→2Ag(s)+CO2(g)+12O2(g)276g Silver carbonate→2×108g Silver ; by mole-mole analysis =216g2.76 Silver carbonate→216276×2.76=2.16g Silver
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