Question

Silver carbonate (Ag2CO3) is a white powder. When heated in a dry test tube, it forms solid grey silver and colorless gases namely Carbon dioxide and oxygen. What conclusions can you draw regarding these four substances: Silver carbonate, Silver, Carbon dioxide, oxygen. PLEASE GIVE FULL EXPLANATION OF THE GIVEN QUESTION

Answer 1

Answer:

hi

g

2

CO

3

(s)→2Ag(s)+CO

2

(g)+

2

1

O

2

(g)

Molecular Weight of Ag

2

CO

3

=276 g

And, molecular weight of Ag=2×108=216 g

276 g of Ag

2

CO

3

give 216 g Ag.

Therefore, 2.76 g of Ag

2

CO

3

on heating will give

276

216

×2.76 g=2.16 g Ag as residue.

Hence, option A is correct.