89. Solving a chemistry problem

89. Solving a chemistry problem

1. What is the emf. an element composed of Sn4 /Sn2 and Fe3 /Fe2 pairs, if the concentrations of Sn4 and Fe2 are each 0.01 g-ion/l, while the concentrations of Sn2 and Fe3 are 1 g-ion/l each?

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