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◇2质量计算(注：相对原子量 O=15.9994, Bi=208.9804, Eu=151.9640)
（1）掺Eu=1%
0.99Bi2O3 + 0.01Eu2O3 = (Bi0.99Eu0.01)2O3
x y 15g
465.9590 464.8187
(15/464.8187)/(x/465.9590) = 100/99 x = 14.8864g y = 15-x = 0.1136g
(2) 掺Eu=5%
0.95Bi2O3 + 0.05Eu2O3 = (Bi0.95Eu0.05)2O3
x y 15g
465.9590 460.2574
(15/460.2574)/(x/465.9590) = 100/95 x = 14.4265g y = 15-x = 0.5735g
(3) 掺Eu=10%
0.90Bi2O3 + 0.1Eu2O3 = (Bi0.90Eu0.1)2O3
x y 15g
465.9262 454.5557
(15/454.5557)/(x/465.9590) = 100/90 x = 13.8387g y = 15-x = 1.1613g
(4) 掺Eu=15%
0.85Bi2O3 + 0.15Eu2O3 = (Bi0.85Eu0.15)2O3