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离子共存

> 在给定条件的水溶液中一定能大量共存的离子组是（　　） A．含SO42-的溶液：Ca2+、NH4+、HCO3-、Cl- B．c（Fe2+）=0.5mol/L的溶液：H+、Na+、NO3-、SO42- C．pH=13的溶液：Na+、K+、Cl-、NO3- D．由水电离出的c（H+）=10-12mol/L的溶液：K+、Ba2+、ClO3-、CO32-

问题：

发布时间：2024-09-12

在给定条件的水溶液中一定能大量共存的离子组是（　　）

A．含SO₄^2-的溶液：Ca²⁺、NH₄⁺、HCO₃^-、Cl^-

B．c（Fe²⁺）=0.5mol/L的溶液：H⁺、Na⁺、NO₃^-、SO₄^2-

C．pH=13的溶液：Na⁺、K⁺、Cl^-、NO₃^-

D．由水电离出的c（H⁺）=10^-12mol/L的溶液：K⁺、Ba²⁺、ClO₃^-、CO₃^2-

参考答案：

提问用户：mC***6eb

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