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Q.

The ammonia evolved from the treatment of 0.30 g of an organic compound for the estimation of nitrogen was passed in 100 mL of 0.1 M sulphuric acid. The excess of acid required 20 mL of 0.5M sodium hydroxide solution for complete neutralization. The percentage nitrogen in the organic compound is

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answer is 47.

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Detailed Solution

Equivalents of NH3 evolved 
 =100×0.1×2100020×0.51000=110
Percent of nitrogen in the unknown organic compound 
 =1100×140.3×100=46.6
 

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