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0.66 g of a compound gave 112 ml of nitr...

0.66 g of a compound gave 112 ml of nitrogen at STP in the Dumas method. The percentage of Nitrogen in the compound is

A

25

B

`41.5`

C

`42.4`

D

`21.2`

Text Solution

Verified by Experts

The correct Answer is:
D
Percent weight of nitrogen
`(V)/(W)xx(28)/(22400)xx100`
V = Volume of nitrogen at STP
W = Weight of organic compound
`=(112)/(0.66)xx(28)/(22400)xx100=21.2`
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