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阿Q吧 > 溶液中Cl-、重铬酸根(CrO4 2-)离子浓度均为0.001mol·L-1,若逐滴加入AgNO3溶液.

溶液中Cl-、重铬酸根(CrO4 2-)离子浓度均为0.001mol·L-1,若逐滴加入AgNO3溶液.

2025-03-26 13:18:44

推荐回答（2个）

回答1：

1.同浓度根据KSP大小判断，谁小谁先沉淀；
2.第二种离子开始沉淀时，加入的硝酸银浓度已知，根据硝酸根的浓度计算此时的第一种离子的浓度，与0.001相减即可

回答2：

我也学生物的
因为容度积agcl
1.8*10^(-10)
ag2cro4
1.1*10(-12)
k[agcl]=[ag+]*[cl-]
k[ag2cro4]=[ag+]^2*[cro4]
所以溶解度agcl比ag2cro4小，先沉淀
cro4
2-沉淀时需要ag+浓度可由k
sp算出来，再用agcl的ksp计算cl-的浓度就好了啊
真是累诶，买一本我们北大的《普通化学实验
b》就好了啊

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