Объяснение:
Mr(K2O) = 39*2 + 16 = 94
W(K) = Ar(K) *n / Mr(K2O) *100% = 39*2 / 94 *100% = 83%
W(O) = Ar(O) *n / Mr(K2O) *100% = 16*1 / 94 *100% = 17%
Объяснение:
Mr(K2O) = 39*2 + 16 = 94
W(K) = Ar(K) *n / Mr(K2O) *100% = 39*2 / 94 *100% = 83%
W(O) = Ar(O) *n / Mr(K2O) *100% = 16*1 / 94 *100% = 17%