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Assuming fully decomposed, the volume of...

Assuming fully decomposed, the volume of `CO_2` released at N.T.P. on heating 9.85 g of `BaCO_3` (atomic mass of Ba = 137) will be

A

0.84 L

B

2.24 L

C

4.06 L

D

1.12 L

Text Solution

Verified by Experts

The correct Answer is:
D
`BaCO_3 overset("heat")(to) BaO+ CO_2`
Mol. Mass of `BaCO_3 = 137 + 12 + 3xx 16 = 197`
197 g of `BaCO_3` on heating gives `CO_2 = 22.4L`
9.85 g of `BaCO_3` on heating give
`CO_2 = (22.4 xx 9.85)/(197) = 1.12 L`
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