Объяснение:
Mr(Al2O3) = 27*2 + 16*3 =102
W(Al) = Ar(Al) *n / Mr(Al2O3) *100% = 27*2 / 102 *100% = 53%
W(O) = Ar(O) *n / Mr(Al2O3) *100% = 16*3 / 102 *100% =47%
Mr(CuCl2) = 64 + 35,5*2 = 135
W(Cu) = Ar(Cu) *n / Mr(CuCl2) *100% = 64 *1 / 135 *100% = 47%
W(Cl) = Ar(Cl) *n / Mr(CuCl2) *100% = 35,5 *2 / 135 *100% = 53%
Объяснение:
Mr(Al2O3) = 27*2 + 16*3 =102
W(Al) = Ar(Al) *n / Mr(Al2O3) *100% = 27*2 / 102 *100% = 53%
W(O) = Ar(O) *n / Mr(Al2O3) *100% = 16*3 / 102 *100% =47%
Mr(CuCl2) = 64 + 35,5*2 = 135
W(Cu) = Ar(Cu) *n / Mr(CuCl2) *100% = 64 *1 / 135 *100% = 47%
W(Cl) = Ar(Cl) *n / Mr(CuCl2) *100% = 35,5 *2 / 135 *100% = 53%