127. Solving a chemistry problem

127. Solving a chemistry problem

253. Calculate the electrode potential in the system:
1) Pb │PbCl2 (tv) 0.5 M KCl
2) Cd│CdCo3 (tv) 0.3 M Na2CO3
3) Ag│AgBr(tv) 0.22 M KBr
4) Pb│PbBr2 (tv) 50 g/l NaBr
5) Ag│AgCl ( sat. solution)

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