Question

3. Following compounds are used as
fertilizers. Determine their formula masses.
(i)
Urea, (NH,), CO
(ii)
Ammonium nitrate, NH, NO3-​

Answer 1

Answer:

I) 60

ii) 80

Explanation:

(I)(NH2)2 CO

Mass of N = 14

Mass of H = 1

Mass of C = 12

mass of O = 16

Mass of compound = (14+2)×2 + 12 + 16

= 32 + 28 = 60

ii) NH4 NO3

= mass of compound = 14 + 4 + 14 + 48

= 80