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本文在恒定特丁醇质量分数x=0.10的条件下,应用电动势法测定了无液接界电池(A)和电池(B)的电动势:Pt,H_2(1.013×10~5Pa)HCl(m),tert.-C_(4)H_9OH(x),H_2O(1-x)AgCl-Ag(A)Pt,H_2(1.013×10~5Pa)|HCI(m_A),NaCl(m_B),tert,-C_4H_9OH(x),H_2O(1-x)|AgCl-Ag(B)根据电池(A)电动势确定了混合溶剂中的Ag-AgCl电极的标准电极电势,讨论了HCl的迁移性质;利用电池(B)的电动势计算了HCl在该体系中的活度系数γ_A,结果表明,在恒定总离子强度下,HCl的活度系数服从Harned规则.计算了HCl的一级、二级和总介质效应.
In this paper, the electromotive force was used to determine the electromotive force of the liquid junctionless battery (A) and the battery (B) under the condition of the constant mass fraction of tetrabutyl titanate x = 0.10: Pt and H 2 (1.013 × 10 ~ 5Pa) (tert-butanol), tert.-C_ (4) H_9OH (x), H_2O (1-x) AgCl-Ag (A) Pt and H_2 (1.013 × 10 ~ 5Pa) The standard electrode potentials of Ag-AgCl electrode in mixed solvents were determined according to the electromotive force of battery (A). The migration properties of HCl were discussed. By using battery (B) and H 2 O (1-x) , The activity coefficient of HCl in this system was calculated and the results showed that the activity coefficient of HCl under the constant total ionic strength obeys Harned’s rule.The primary, secondary and total medium effects of HCl were calculated.