Question

nitrogen and hydrogen combine in a ratio of 14:3 by mass to forms ammonia molecule .determine formula of ammonia

Answer 1

atomic mass of 1 nitrogen atom= 14g
atomic mass of 1 hydrogen atom = 1 g
combining ratio = 14:1
molecular weight formed by the compound = 17
formula of ammonia = NH3
so,N2 + 3H2 = 2NH3

Answer 2

NH3

(14 x 1) + (1 x 3)

14 + 3

17 u