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In Dumas' method of estimation of nitrog...

In Dumas' method of estimation of nitrogen `0.35 g` of an organic compound gave `55mL` of nitrogen collected at `300K` temperature and `715 mm` pressure. The percentage composition of nitrogen in the compound would be `: (` Aqueous tension at `300K =15 mm)`

A

`14.45`

B

`15.45`

C

`16.45`

D

`17.45`

Text Solution

Verified by Experts

The correct Answer is:
C
`(P_(1)V_(1))/(T_(1)) = (P_(2)V_(2))/(T_(2))`, on calculation.
`V_(2) = 46.09 ml`
`%` of `N = (28 xx 46.09 xx 100)/(22400 xx 0.35) = 16.45`
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