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Some Basic Concepts of Chemistry
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14/08/2021 11:21 am
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2.76 g of silver carbonate (at mass of Ag 108) on being heated strongly yield a residue weighing
(a) 2.16 g
(b) 2.48 g
(c) 2.32 g
(d) 2.64 g
1 Answer
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14/08/2021 11:24 am
Topic starter
Correct answer: (a) 2.16 g
Explanation:
Decomposition of Ag2CO3 gives silver
2Ag2CO3 → 4Ag + 2CO2 + O2
2 x 276g 4 x 108g
2.76g 2.16 g