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在25°下,用电动势法测定了 NaCl-Mg(NO_3)_2-H_2O、NaCl-Ca(NO_3)_2-H_2O、Nacl-Sr(NO_3)2-H_2O 体系中 NaCl 的平均离子活度系数,用简化的 Pitzer 计算公式从理论上进行了计算,实验值与理论值较接近.
The average ion activity coefficient of NaCl in NaCl-Mg (NO_3) _2-H_2O, NaCl-Ca (NO_3) _2-H_2O and Nacl-Sr (NO_3) 2-H_2O was determined by electromotive force method The simplified Pitzer calculation formula is theoretically calculated, and the experimental values are close to the theoretical ones.