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What volume of CO(2) at STP is obtained ...

What volume of `CO_(2)` at `STP` is obtained by thermal decomposition of `20g KHCO_(3)` to `CO_(2)& H_(2)O` [Atomic mass `K = 39]` .

Text Solution

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Write balanced reaction : `{:(2KHCO_(3)(s),overset(Delta)rarr,K_(2)O(s)+,2CO_(2)(g),+H_(2)O(g)),(20g=0.2mol,,0.2mol,,):}`
Vol of `CO_(2) = 0.2 xx 22.4 = 4.48 L` .
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Knowledge Check

  • Volume of CO_(2) obtained at STP by the complete decomposition of 9.85 g Na_(2)CO_(3) is

    A
    2.24 litre
    B
    Zero
    C
    0.85 litre
    D
    0.56 litre

  • The volume of CO_(2) at STP obtained by heating 1 g of CaCO_(3) will be

    A
    `1 L`
    B
    `22.4 L`
    C
    `0.224 L`
    D
    `11.2 L`

  • Volume of O_(2) obtained at 2 atm & 546K, by the complete decomposition of 8.5 g NaNO_(3) is

    A
    2.24 lt.
    B
    1.12 lt.
    C
    0.84 lt.
    D
    0.56 lt.

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