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Title: Conductance and transference number measurements of some 1:1 electrolytes in acetic acid + water mixtures at 25°C
Authors: Jauhar, S P
Gupta, C M
Kapila, V P
Issue Date: Jul-2001
Publisher: NISCAIR-CSIR, India
Abstract: Molar conductances of some 1:1 alkali metal and tetraalkylammonium salts and silver nitrate have been measured in acetic acid + water mixtures containing 0, 20, 40, 60, 80 and 90 wt% acetic acid at 25°C. The conductance data have been analysed by Shedlovsky method setting ion-size parameter equal to Bjerrum critical distance suggested by Justice to calculate Λ0 and KA. Transference numbers of NO3- ion in AgNO3 have also been measured in water and acetic acid + water mixtures containing 20, 40, 60, 80 and 90 wt % acetic acid by modified Hittorfs method and e.m.f method. The limiting transference numbers to t0NO3-have been combined with Λ0 values of AgNO3 to obtain limiting ionic conductances, λ0Ag+ and λ0 NO3- and these values have been further used to calculate limiting ionic molar conductances of all other ions using Kohlrausch law. These studies suggest the solvation pattern in acetic acid + water mixtures as : Li+ > Na+ >Ag+ > K+ > NH4+ and BPh4- > CH3COO- > Cl- >Br- > NO3-.
Page(s): 742-746
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.40A(07) [July 2001]

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