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mh=?
Dane:
mH2O=50g
Cp=6%
Mh=249,5g/mol
MCuSo₄=159,5g/mol
6gs.suchej --- 94g H2O
x gs.suchej --- 50g H2O
x=3,2g s.suchej
249,5g h ----159,5g s.suchej
x ----------3,2g s.suchej
x=5g h
Odp.Należy rozpuścic 5g hydratu(CuSO₄*5H₂O).