82问答网 > 用0.1mol.l-1hc？l溶液滴定20ml 0.1000moll-1nh3.h2o溶液时，化学计量点的ph值是多少

用0.1mol.l-1hc？l溶液滴定20ml 0.1000moll-1nh3.h2o溶液时，化学计量点的ph值是多少

2025-03-29 21:45:32
推荐回答（1个）
回答1：

1、产物是 NH4Cl，浓度是从0.05 mol/L,求其 pH 值：
2、计算： [H+] = （k·c）1/2 = （10^-9.26 x 10^-1.3 ）1/2 = 10^-10.56 /2 = 10^-5.28
pH = 5.28

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