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Question

P+5HNO3H3PO4+H2O+5NO2
What would be the volume of steam produced from 6.2 g of phosphorus at STP ?
[H=1;N=14;O=16;P=31]

A
11.25 L
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B
22.4 L
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C
112.5 L
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D
4.48 L
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Solution

The correct option is D 4.48 L
Atomic weight of P = 31 g
We know that 31 g of P will give 22.4 lit H2O.
Therefore, 6.2 g of P will give =22.431×6.2=4.48L H2O.

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