Question

estimate the percent of nitrogen present in organic compound​

Answer 1

0.5 g of organic compound contains 100014×20g of nitrogen.

Hence, 100 g of compound will contain 1000×0. 514×20×100=56% of nitrogen.

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Answer 2

Helo mate here your ans

During estimation of nitrogen present in an organic compound by Kjeldahl's method, the ammonia evolved from 0.5 g of the compound in Kjeldahl's estimation of nitrogen neutralized 10 mL of 1MH

2

SO

4.

. The percentage of nitrogen in the compound is :

December 20, 2019avatar

Angèliña Kshetrapal

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ANSWER

10 ml of 1M H

2

SO

4

corresponds to 20 ml of 1M ammonia.

1000 ml of 1 M ammonia contains 14 g of nitrogen.

Hence, 20 ml of 1 M ammonia will contain

1000

14×20

g of nitrogen.

0.5 g of organic compound contains

1000

14×20

g of nitrogen.

Hence, 100 g of compound will contain

1000×0.5

14×20×100

=56% of nitrogen.