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Assuming fully decomposed, the volume of...

Assuming fully decomposed, the volume of `CO_(2)` released at STP on heating 9.85 g of `BaCO_(3)` (Atomic mass of Ba=137) will be

A

0.84L

B

2.24 L

C

4.06 L

D

1.12 L

Text Solution

Verified by Experts

The correct Answer is:
D
`BaCO_(3) to BaO + CO_(2) uarr`
Molecular weight of `BaCO_(3) = 137+12+3 xx16 = 197`
`because ` 197g produces 22.4Lat S.T.P.
`therefore " "` 9.85g produces `(22.4)/(197) xx 9.85 = 1.12L` at S.T.P
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