Объяснение:
Mr(NH3) = 14 + 1*3 = 17
W(N) = Ar(N) *n / Mr(NH3) *100% = 14*1 / 17 *100% = 82%
W(H) = Ar(H) *n / Mr(NH3) *100% = 1*3 / 17 *100% = 18%
Mr(HCl) = 1+ 35,5 = 36,5
W(H) = Ar(H) *n / Mr(HCl) *100% = 1*1 / 36,5 *100% =3%
W(Cl) = Ar(Cl) *n / Mr(HCl) *100% = 35,5 *1 / 36,5 *100% = 97%
