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Question

If excess water is added into a bottle sample labelled as 112%H2SO4 and is reacted with 5.3 g Na2CO3, then find the volume of CO2 evolved at 1 atm pressure and 300 K temperature after the completion of the reaction.

A
2.46L
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B
24.6L
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C
1.23L
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D
12.3L
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Solution

The correct option is C 1.23L
The reaction is as follows:
Na2CO3+H2SO4Na2SO4+H2O+CO2
Moles of CO2 formed = Moles of Na2CO3 reacted=5.3106=0.05.
Volume of CO2 formed at 1 atm pressure and 300K=0.05×24.63=1.23L.

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