Question

If the ratio by number of constituent elements
in a molecule of ammonia is 1:3, then the
ratio by mass of constituent element
respectively is
12:3
3:4
14:3
15:13​

Answer 1

Explanation:

The chemical formula of ammonia is NH3. Atomic mass of nitrogen is 14 and of hydrogen is 1×3=3 units. Hence the correct option is A.

Answer 2

Answer:

hence the correct option is A

Explanation:

The chemical formula of ammonia is NH3.

Atomic mass of nitrogen is 14 and of hydrogen

N:H×3

14:1×3

14:3

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