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Sensores de Oxigénio Dissolvidos - ERT Lda...O2 + 4e- + 2H2O 4OH Ânodo (Pb) – Reação de oxidação do Chumbo: 2Pb 2Pb2+ + 4e Reação Global: O2 + 2H2O + 2Pb 2Pb(OH)2 O sólido
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