Below are the reduction half reactions for chemolithoautotrophic denitrification, where hydrogen is a source of electrons...

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Below are the reduction half reactions for chemolithoautotrophic denitrification, where hydrogen is a source of electrons...

Below are the reduction half reactions for chemolithoautotrophic denitrification, where hydrogen is a source of electrons and energy and nitrate is the terminal electron acceptor.

NO₃^- + 10e^- -> N₂ (E⁰ = +0.74 V)

H⁺ + 2e^- -> H₂ (E⁰ = -0.42 V)

If you balance and combine the reactions so that 220 molecules of H2 gas are oxidized to H⁺, how many molecules of NO₃^- will be reduced to dinitrogen gas?

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