【摘要】 <正> 本文用EMF法测定了25.00±0.02℃时,总离子强度由0.1到5.0mol kg^-1的HO¹-NiCl₂-H₂O体系中盐酸的活度系数,列入表1。实验方法同文献[1]。实验结果表明,离子强度高达5.0mol kg^-1时,HCl仍然遵守Harned规则,即扩展的Harned方程式:更多还原

【Abstract】 Activity coefficient for HC1 in the system HCl+ NiCl2 + H2O with constant total ionic strengths have been measured at 298.15K by the EMF method. Treated by using Har-ned’s and Pitzer’s equations for the mixed electrolyte solutions the results showed that the coefficient obeys Harned’s Rule in the mentioned condition above. The mixing parameters 0 and ψ in Pitzer’s equation have been obtained by using three methods and the activity coeffcients for the salt NiCl2 derived from them are in agreement with each other within expcrement error.更多还原