Ответ:
Объяснение:
Mr(NH4)2[Fe(SO4)2] = 14*2 +1*8 + 56 + 32*2 + 16*8 = 284
W(H) = Ar(H)*n / Mr(NH4)2[Fe(SO4)2] *100% = 1*8 / 284 *100% =2,8%
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Ответ:
Объяснение:
Mr(NH4)2[Fe(SO4)2] = 14*2 +1*8 + 56 + 32*2 + 16*8 = 284
W(H) = Ar(H)*n / Mr(NH4)2[Fe(SO4)2] *100% = 1*8 / 284 *100% =2,8%