上海磁悬浮铁路是世界上第一条投入运营的商业磁悬浮铁路。磁悬浮的核心技术是利用超导体的反磁性。以Y2O3、BaCO3和CuO为原料，经研磨烧结可合成一种高温超导物质YBa2Cu3Ox。现欲合成0.5mo_刷题宝

题干

上海磁悬浮铁路是世界上第一条投入运营的商业磁悬浮铁路。磁悬浮的核心技术是利用超导体的反磁性。以Y₂O₃、BaCO₃和CuO为原料，经研磨烧结可合成一种高温超导物质YBa₂Cu₃O_x。现欲合成0.5mol此高温超导物质，理论上需取Y₂O₃、BaCO₃和

CuO的物质的量（

mol）分别为（　　）

A：0.25、0.50、0.50

B：0.50、1.00、1.50

C：0.25、1.00、1.50

D：1.00、0.25、0.17

上一题下一题 0.0难度选择题更新时间:2018-06-14 07:31:17

答案(点此获取答案解析）

C

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