Question:
2.76 g of silver carbonate on being strongly heated yields a
residue weighing
2.76 g of silver carbonate on being strongly heated yields a
residue weighing
Updated On: Mar 26, 2024
- 2.16 g
- 2.48 g
- 2.32 g
- 2.64 g
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The Correct Option is A
Solution and Explanation
Unlike other metal carbonates that usually decomposes into metal
oxides liberating carbon dioxide, silver carbonate on heating
decomposes into elemental silver liberating mixture of carbon
dioxide and oxygen gas as : M
$ Ag_2CO_3 \, _{\longrightarrow \, \, \, \, }^{Heat} 2Ag (s) + CO_2(g) + \frac{1}{2} O_2(g) $
MW = 276 g $ \hspace26mm $ 2 x 108 = 216 g
Hence, 2.76 g of $Ag_2CO_3 $ on heating will give
$ \frac{216}{216 } \times 2.76 $ = 2.16g Ag as residue.
oxides liberating carbon dioxide, silver carbonate on heating
decomposes into elemental silver liberating mixture of carbon
dioxide and oxygen gas as : M
$ Ag_2CO_3 \, _{\longrightarrow \, \, \, \, }^{Heat} 2Ag (s) + CO_2(g) + \frac{1}{2} O_2(g) $
MW = 276 g $ \hspace26mm $ 2 x 108 = 216 g
Hence, 2.76 g of $Ag_2CO_3 $ on heating will give
$ \frac{216}{216 } \times 2.76 $ = 2.16g Ag as residue.
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Classification of Matter
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