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What is the minimum mass of CaCO3(s), be...

What is the minimum mass of `CaCO_3(s)`, below which it decomposes completely, required to establish equilibrium in a 6.50 litre container for the reaction :
`CaCO_3(s)hArr CaO(s)+CO_2(g), K_c=0.05`

A

32.5g

B

24.6g

C

40.9g

D

8.0g

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A
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