Li2S
Объяснение:
Mr(Ag2S) = 108*2 + 32 =248
W(Ag) = Ar(Ag) *n / Mr(Ag2S) *100% = 108 *2 / 248 *100% =87%
Mr(K2S) = 39*2 + 32 = 110
W(K) = Ar(K) *n / Mr(K2S) *100% = 39*2 / 110 *100% = 71%
Mr(Na2S) = 23*2 + 32 = 78
W(Na) = Ar(Na) *n / Mr(Na2S) *100% = 23*2 / 78 *100% = 59%
Mr(Li2S) = 7*2 + 32 = 46
W(Li) = Ar(Li) *n / Mr(Li2S) *100% = 7*2 / 46 *100% = 30%
Li2S
Объяснение:
Mr(Ag2S) = 108*2 + 32 =248
W(Ag) = Ar(Ag) *n / Mr(Ag2S) *100% = 108 *2 / 248 *100% =87%
Mr(K2S) = 39*2 + 32 = 110
W(K) = Ar(K) *n / Mr(K2S) *100% = 39*2 / 110 *100% = 71%
Mr(Na2S) = 23*2 + 32 = 78
W(Na) = Ar(Na) *n / Mr(Na2S) *100% = 23*2 / 78 *100% = 59%
Mr(Li2S) = 7*2 + 32 = 46
W(Li) = Ar(Li) *n / Mr(Li2S) *100% = 7*2 / 46 *100% = 30%