Question

12) Mass of one molecule of ammonia is
approximately
a) 2.82 x 10-2gm
b) 18gm
c) 1.5 x 10-2
gm
d) 4.5 x 10-23gm​

Answer 1

Answer:

The correct answer is.. 17 but approx answer is required so your answer is 18

Explanation:

Formula of ammonia

NH3

Find their masses individually

For nitrogen(N).. The atomic mass is 14

For hydrogen (H). Atomic mass is 1 so (1×3=3)

Now add the masses (14+3=17)