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题文

下列各溶液中,Na+物质的量浓度最大的是

A.1 L 0.3mol/L Na2SO4溶液 B.1 L 0.3mol/L NaCl溶液
C.2 L 0.4mol/L NaOH溶液 D.2 L 0.15mol/L Na3PO4溶液
科目 化学   题型 选择题   难度 中等
知识点: 探究物质的组成或测量物质的含量
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