Объяснение:
Mr(KNO3) =39+14+16*3=101
W(K) = Ar(K) *n / Mr(KNO3) *100% = 39*1/101 *100% =37%
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% =49%
Объяснение:
Mr(KNO3) =39+14+16*3=101
W(K) = Ar(K) *n / Mr(KNO3) *100% = 39*1/101 *100% =37%
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% =49%