Объяснение:
FeSO4*7H2O
Mr(FeSO4*7H2O)=56+32+(16*4)+7*2+7*16=278
w(FeSO4)=152/278×100=54,67%
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Объяснение:
FeSO4*7H2O
Mr(FeSO4*7H2O)=56+32+(16*4)+7*2+7*16=278
w(FeSO4)=152/278×100=54,67%