Calculate the percentage of nitrogens in `NH_(3)`. (Atomic mass of N=14, H=1 amu)

Calculate the percentage of nitrogen in NH_3 (Atomic mass of N = 14, H = 1amu)

percentage of nitrogen by mass in N_(2)H_(4) ?

Calculate the oxidation state of nitrogen ( N ) in NH3

Calculate the percentage of nitrogen in ammonium nitrate. [NH_4NO_3] [N=14 , H=1, O=16]

Urea is a very important nitrogenous fertiliser. Its formula is CON_(2)H_(4) . Calculate the percentage of nitrogen in urea. (C = 12, O = 16, N = 14 and H = 1)

Calculate the percentage of nitrogen in urea NH_2CONH_2 . Given : R.M.M. of N = 14, C = 12 , O = 16, H = 1 ?

Calculate the number of electrons in 1.4 gram 7^(N^(3-)) ion. (Atomic mass of N=14).

Calculate the molecular mass of nitric acid, HNO_(3) . (Atomic masses : H = 1 u, N = 14 u , O = 16 u )

Calculate the mass of oxygen atom in amu.

Calculate the oxidation number of nitrogen (N) in NH3