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电解质溶液中离子浓度大小的比较

> 下列溶液中有关粒子的物质的量浓度关系正确的是（　　） A．25℃时，pH=4的HCl溶液与pH=4的醋酸溶液中：c（Cl-）=c（CH3COO-） B．氯水中：2c（Cl2）=c（ClO-）+c（Cl-）+c（HClO） C．pH=8的0.1mol/L的NaHB溶液中：c（HB-）＞c（H+）＞c（B2-）＞c（H2B） D．1mol•L-1的Na2S溶液中：c（OH-）=c（HS-）+c（H2S）+c（H+）

问题：

发布时间：2024-09-13

下列溶液中有关粒子的物质的量浓度关系正确的是（　　）

A．25℃时，pH=4的HCl溶液与pH=4的醋酸溶液中：c（Cl^-）=c（CH₃COO^-）

B．氯水中：2c（Cl₂）=c（ClO^-）+c（Cl^-）+c（HClO）

C．pH=8的0.1mol/L的NaHB溶液中：c（HB^-）＞c（H⁺）＞c（B^2-）＞c（H₂B）

D．1mol•L^-1的Na₂S溶液中：c（OH^-）=c（HS^-）+c（H₂S）+c（H⁺）

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