游客
题文

常温下,下列有关溶液的叙述正确的是

A.将pH=1的醋酸和pH=13的Na OH溶液混合后,若c(CH3COO)=c(Na+),则溶液显中性
B.在Na2SO3溶液中:c(Na+) = 2c(SO32) + c(HSO3) + c(OH)
C.pH=6的CH3COOH溶液和pH=6的NH4Cl溶液,由水电离出的c(H+)均为1×10-8mol·L-1
D.在饱和Na2CO3溶液中:2c(Na+) = c(CO32) + c(HCO3) + c(H2CO3)
科目 化学   题型 选择题   难度 中等
知识点: 水的电离 盐类水解的应用
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