Question

0.2 g of an organic compound on Kjeldahls analysis gave enough ammonia to just neutralise
20 ml of 0.1 N H,50q, calculate the % of nitrogen in the compound.​

Answer 1

Answer:

Explanation:

%N  

2

​  

=  

massofcompound

1.4×meq.ofH  

2

​  

so  

4

​  

usedtoneutralizeNH  

3

​  

 

​  

 

V(H  

2

​  

so  

4

​  

)=20ml.

N=0.1N

%N  

2

​  

=  

0.2

1.4×0.1×20

​  

 

=  

0.2

2.8

​  

 

N  

2

​  

=14 %