問答題

計(jì)算下列換算因數(shù): 
(1)從Mg2P2O7的質(zhì)量計(jì)算MgSO4·7H2O的質(zhì)量;
(2)從(NH4)3PO4·12MoO3的質(zhì)量計(jì)算P和P2O5的質(zhì)量;
(3)從Cu(C2H3O22·3Cu(AsO22的質(zhì)量計(jì)算As2O3和CuO的質(zhì)量;
(4)從丁二酮肟鎳Ni(C4H8N2O22的質(zhì)量計(jì)算Ni的質(zhì)量; 
(5)從8-羥基喹啉鋁(C9H6NO)3Al的質(zhì)量計(jì)算Al2O3的質(zhì)量。


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