n(MgSO4*6H2O)=30;5/228=61/456 моль
n(H2O)=61/456*6=61/76 моль
m(H2O)=61/76*18=549/38г
Cm=n(MgSO4)*1000/m(H2O)
61/456=2,5*(m(H2O)+549/38)/1000
m(H2O)=4453/114 г
n(H2O)=4453/114/18=2,17 моль
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n(MgSO4*6H2O)=30;5/228=61/456 моль
n(H2O)=61/456*6=61/76 моль
m(H2O)=61/76*18=549/38г
Cm=n(MgSO4)*1000/m(H2O)
61/456=2,5*(m(H2O)+549/38)/1000
m(H2O)=4453/114 г
n(H2O)=4453/114/18=2,17 моль