Measurements of the emf of cells of the type Ag
Chapter 7, Problem 7.19(choose chapter or problem)
Measurements of the emf of cells of the type Ag | AgX(s)MX(b1) |Mx Hg|MX(b2) | AgX(s) | Ag, where MxHg denotes an amalgam and the electrolyte is an alkali metal halide dissolved in ethylene glycol, have been reported (U. Sen, J. Chem. Soc. Faraday Trans. I 69, 2006 (1973)) and some values for LiCl are given below. Estimate the activity coefficient at the concentration marked * and then use this value to calculate activity coefficients from the measured cell potential at the other concentrations. Base your answer on the following version of the extended DebyeHckel law: log = + kI with A = 1.461, B = 1.70, k = 0.20, and I = b/b7. For b2 = 0.09141 mol kg1: b1/(mol kg1) 0.0555 0.09141* 0.1652 0.2171 1.040 1.350 E/V 0.0220 0.0000 0.0263 0.0379 0.1156 0.1336
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