Объяснение:
Mr(MgCl2) = 24 + 35,5*2 =95
W(Mg) = Ar(Mg) *n / Mr(MgCl2) *100% = 24*1 / 95 *100% =25%
W(Cl) = Ar(Cl) *n / Mr(MgCl2) *100% = 35,5*2 / 95 *100% =75%
Объяснение:
Mr(MgCl2) = 24 + 35,5*2 =95
W(Mg) = Ar(Mg) *n / Mr(MgCl2) *100% = 24*1 / 95 *100% =25%
W(Cl) = Ar(Cl) *n / Mr(MgCl2) *100% = 35,5*2 / 95 *100% =75%