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
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Answer 1

Answer:

The chemical formula of ammonia is NH

3

. Atomic mass of nitrogen is 14 and of hydrogen is 1×3=3 units.

N:H×3

14:1×3

14:3

Hence the correct is 14:3

Explanation:

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Answer 2

Answer:

3:4 Because they are ammonia