Question

In a natural pond, the anaerobic bacteria in the sediment are able to acquire electrons from sediment ferrous salts (Fe²⁺=Fe³⁺+e^-, E⁰=-0.44 V). If you connect a graphite electrode situated at the sediment using a conductive wire to another graphite electrode that is floating on the pond surface. Estimate the ideal cell potential (V) and determine if the acidic solution pH is favorable for generating a higher electricity?

Answer 1