Effect of polyelectrolyte charge density on calcium ion activity coefficients and additivity in aqueous solutions of calcium acrylamide-acrylic acid copolymers

1981 ◽  
Vol 14 (5) ◽  
pp. 1448-1451 ◽  
Author(s):  
Marie Kowblansky ◽  
Paul Zema





2009 ◽  
Vol 54 (6) ◽  
pp. 1958-1960 ◽  
Author(s):  
Eva Rodil ◽  
Alberto Arce ◽  
Grazyna Wilczek-Vera ◽  
Juan H. Vera


2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Debasmita Dash ◽  
Shekhar Kumar ◽  
C. Mallika ◽  
U. Kamachi Mudali

Ion selective electrodes (ISEs) are used to measure the single-ion activity coefficients in aqueous solutions of KNO3 and KCl at 298.15 K against a double-junction reference electrode. The EMF responses of ISEs up to 0.01 m are plotted to obtain the slope and intercept values. The obtained slopes and intercepts are used in Nernst equation for higher concentrated solutions for calculation of individual ion activity coefficient. The mean ionic activity coefficients are estimated from single ion activity coefficient, and the obtained results are compared with the literature values.





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