2.76 , g of silver carbonate on being strongl | vedclass

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Question

(A) The chemical equation for the thermal decomposition of silver carbonate is:$2Ag_2CO_3 \xrightarrow{\Delta} 4Ag + 2CO_2 + O_2$The molar mass of $Ag

Vedclass · Accepted Answer

$2.16$

Vedclass · Answer

(A) The chemical equation for the thermal decomposition of silver carbonate is:$2Ag_2CO_3 \xrightarrow{\Delta} 4Ag + 2CO_2 + O_2$The molar mass of $Ag_2CO_3$ is $(2 	imes 108) + 12 + (3 	imes 16) = 276 \, g/mol$.According to the stoichiometry of the reaction,$2 \, mol$ of $Ag_2CO_3$ $(2 	imes 276 = 552 \, g)$ produces $4 \, mol$ of solid silver residue $(4 	imes 108 = 432 \, g)$.Therefore,$2.76 \, g$ of $Ag_2CO_3$ will yield:$	ext{Mass of Ag} = \frac{432 \, g 	imes 2.76 \, g}{552 \, g} = 2.16 \, g$.

$2.76 \, g$ of silver carbonate on being strongly heated yields a residue weighing $..........$ $g$.

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