MgO
Объяснение:
Mr(MgO) = 24+16 = 40
W(Mg) = Ar(Mg) *n / Mr(MgO) *100% = 24*1 / 40 *100% =60%
Mr(MgF2) = 24 + 19*2 = 62
W(Mg) = Ar(Mg) *n / Mr(MgF2) *100% = 24*1 / 62 *100% =39%
MgO
Объяснение:
Mr(MgO) = 24+16 = 40
W(Mg) = Ar(Mg) *n / Mr(MgO) *100% = 24*1 / 40 *100% =60%
Mr(MgF2) = 24 + 19*2 = 62
W(Mg) = Ar(Mg) *n / Mr(MgF2) *100% = 24*1 / 62 *100% =39%