Urea is a very important nitrogenous fertilizer. Its formula is CON2H4 Calculate the percentage of nitrogen in urea (C = 12, O = 16, N = 14 and H = 1).
Urea has the formula NH2−CO−NH2, i.e. CON2H4
Molecular mass of urea = 60 g/mol
Atomic mass of N = 14 & number of atoms = 2
i.e. 28 g/mol of urea
Thus the % of nitrogen = 2860×100=46.66%