0731. Solving a chemistry problem

0731. Solving a chemistry problem

1. The electrical conductivities of Zn2 and SO42- ions are respectively 47 and 70 S*cm2/mol. Calculate the emf of a concentration element composed of two zinc electrodes in 0.05 and 0.005 mol/l solutions of zinc sulfate. The activity coefficient in a 0.05 mol/l solution is taken to be 0.36, and in a 0.005 mol/l solution – 0.62. Temperature 25 C.

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