Home
Class 11
CHEMISTRY
In Kjeldahl's estimation of nitrogen, th...

In Kjeldahl's estimation of nitrogen, the ammonia evolved from 0.5g of an organic compound neutralised 10ml of `1M H_(2)SO_(4)`. Calculate the percentage of nitrogen in the compound

Text Solution

Verified by Experts

N of compound is converted into `NH_(3)` and is estimated by titration.
1M of 10mL `H_(2)SO_(4)` = 1M of 2mL `NH_(3)` , 1000 mL of 1M ammonia contains 14g nitrogen
20mL of 1 M ammonia contains `(14 xx 20)/(1000)g N_(2)` , Precentage of nitrogen = `(14 xx 20 xx 100)/(1000 xx 0.5) = 56.0`
Promotional Banner

Similar Questions

Explore conceptually related problems

If 0.75 g of an organic compound in Kjeldahl's method neutralized 30 ml of 0.25N- H_(2)SO_(4) , the percentage of nitrogen in the compound is

The ammonia evolved from 0.21 g of an organic compound by Kjeldahl method neutralised 15 ml of N/20 sulphuric acid solution. Calculate the percentage of nitrogen.

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 1 M H_(2)SO_(4) . Find out the percentage of nitrogen in the compound.

0.28g of an organic compound in Dumas method liberated 22.4 ml of nitrogen at STP. The percentage of nitrogen in the compound is

0.24 g of an organic compound gave 0.287 g of AgCl in the carius method. Calculate the percentage of chlorine in the compound.