Question

acompa compound contains 28% of nitrogen and 72% of a metal by weight 3 at the age of the metal combine with 2 atom of nitrogen find the atomic weight of the metal​

Answer 1

28 g of nitrogen combines with 72 g of metal. Three atoms of metal combine with two atoms of nitrogen. This means the valency of metal is 2.

Let M be the atomic mass of metal.

Equivalents of N=  

3

14

​  

 

28

​  

=  

6

1

​  

 

Equivalents of metal =  

2

M

​  

 

72

​  

=  

M

144

​  

 

6

1

​  

=  

M

144

​  

 ⇒M=  

6

144

​  

=24 g

Answer 2

Answer is 24.

hope it helps u...