Объяснение:
Mr(KNO3) = 39+14+16*3=101
W(K) = Ar(K) *n / Mr(KNO3) *100% = 39*1/ 101 *100% =39%
W(N) = Ar(N) *n / Mr(KNO3) *100% = 14*1 / 101 *100% = 14%
W(O) = Ar(O) *n / Mr(KNO3) *100% = 16*3 / 101 *100% =47%
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(KNO3) = 39+14+16*3=101
W(K) = Ar(K) *n / Mr(KNO3) *100% = 39*1/ 101 *100% =39%
W(N) = Ar(N) *n / Mr(KNO3) *100% = 14*1 / 101 *100% = 14%
W(O) = Ar(O) *n / Mr(KNO3) *100% = 16*3 / 101 *100% =47%
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%