0,14 х
3CaO+P2O5-->Ca3(PO4)2
n(P2O5)=20:142≈0,14моль
х=0,14
m(Ca3(PO4)2)=0,14×310=43,4г
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0,14 х
3CaO+P2O5-->Ca3(PO4)2
n(P2O5)=20:142≈0,14моль
х=0,14
m(Ca3(PO4)2)=0,14×310=43,4г