81 gm mixture of mgCO(3)(s) and NH(3)CO...

81 gm mixture of `mgCO_(3)(s)` and `NH_(3)CO_(3)(s)` is heated to constant mass. If vapour density of gaseous mixture evolved was found to be `(61)/(4)` then
Given that:
`MgCo_(3)(s) rarr MgO_(s) + CO_(2)(g)`
`NH_(2)COONH_(4)(s) rarr 2NH_(3)(g)+CO_(2)(g)`
Mole % of `MgCo_(3)` in original sample:

0.5

0.6

0.75

None of these

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The correct Answer is:

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81 gm mixture of mgCO_(3)(s) and NH_(3)CO_(3)(s) is heated to constant mass. If vapour density of gaseous mixture evolved was found to be (61)/(4) then Given that: MgCo_(3)(s) rarr MgO_(s) + CO_(2)(g) NH_(2)COONH_(4)(s) rarr 2NH_(3)(g)+CO_(2)(g) ltBrgt Volume (in litre0 of the total gases produced at 1 atm and 273 K:

22.4

44.8

179.2

896

`-ve`

`+ve`

`oo`

`K_(P)=P_(CO_(2))`

`K_(P)=P_(CO_(2))xx(P_(CO_(2))xxP_(MgO))/(P_(MgCO_(3)))`

`K_(P)=(P_(CO_(2))xxP_(MgO))/(P_(MgCO_(3)))`

`K_(P)=(P_(MgCO_(3)))/(P_(CO_(2))xxP_(MgO))`