Question

Nitrogen and hydrogen combine together to form ammonia. N, + 3H, → 2NH3
[Relative atomic masses of N = 14, H = 1]. The mass of nitrogen and hydrogen which combine
together to form 6.8 g ammonia is

a) N = 2.8 g, H, = 4.0 g

b) N = 5.6 g, H, = 1.2 g

c) N, = 4.0 g, H, = 2.8 g

d) N = 1.2 g, H, = 5.6 g​

Answer 1

Answer:

optn b is correct

Explanation:

17gm of ammonia = 14gm of nitrogen

6.8 gm of ammonia = 6.8×14/17 =5.6 gm of nitogen

17 gm of ammonia = 1x3 gm of hydrogen

6.8 gm of ammonia = 6.8 ×3 /17 = 1.2 gm of hydrogen