Mr(CaSO3) =120
w(Ca) = 40:120*100=33.3 %
w(S)=32:120*100=26.7 %
w(O)=48:120*100 =40%
Mr(BaCO3)=197
w(Ba)=137:197×100=69.59%
w(C)=12:197×100=6.08%
w(O)=48:197×100=24.32%
1)212
1)2122)120
1)2122)1203)197 Здесь Смотри Внимательно
3) Mr[BaCO3] = Ar[Ba] + Ar[C] + Ar[O] * 3 = 137.327 + 12.0107 + 15.9994 * 3 = 197.3359
2) Mr[CaSO3] = Ar[Ca] + Ar[S] + Ar[O] * 3 = 40.078 + 32.065 + 15.9994 * 3 = 120.1412
1) Mr[K3PO4] = Ar[K] * 3 + Ar[P] + Ar[O] * 4 = 39.0983 * 3 + 30.973762 + 15.9994 * 4 = 212.266262
Mr(CaSO3) =120
w(Ca) = 40:120*100=33.3 %
w(S)=32:120*100=26.7 %
w(O)=48:120*100 =40%
Mr(BaCO3)=197
w(Ba)=137:197×100=69.59%
w(C)=12:197×100=6.08%
w(O)=48:197×100=24.32%
1)212
1)2122)120
1)2122)1203)197 Здесь Смотри Внимательно
3) Mr[BaCO3] = Ar[Ba] + Ar[C] + Ar[O] * 3 = 137.327 + 12.0107 + 15.9994 * 3 = 197.3359
2) Mr[CaSO3] = Ar[Ca] + Ar[S] + Ar[O] * 3 = 40.078 + 32.065 + 15.9994 * 3 = 120.1412
1) Mr[K3PO4] = Ar[K] * 3 + Ar[P] + Ar[O] * 4 = 39.0983 * 3 + 30.973762 + 15.9994 * 4 = 212.266262