Ответ:
Mr(P2O3)=31×2+16*3=110
Mr(Ca3(PO4)2)=40×3(31+16×4)×2=22800
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Ответ:
Mr(P2O3)=31×2+16*3=110
Mr(Ca3(PO4)2)=40×3(31+16×4)×2=22800