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本文对Ｃａ（ＯＨ）２溶度积实验的测定进行了改进，将两次溶液测定ＯＨ－和Ｃａ２＋，简化为一次测定，并用计算说明了实测值与理论值差异的原因。
In this paper, the determination of the solubility product of Ca (OH) 2 has been improved. The determination of OH- and Ca2 + in two solutions is simplified to one measurement. The reason for the difference between the measured value and the theoretical value is calculated.