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The rxn 2 Ag (aq) Fe(s) -> Fe^2 (aq) 2 Ag(s)

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taking place in a battery generates a current of 2amp. How much Fe(s) is consumed in 1hr? in g

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  1. 2 Ag(aq) + Fe(s) -> Fe++ (aq)  + 2 Ag(s)

    number of moles of electrones in reaction = 2

    i*t = 2A * (60*60)sec = 7200C

    7200C / F = 7200C / 96485C/mol = 7.46*10^-2mol of electron

    7.46*10^-2 / 2 = 3.73*10^-2mol of Fe

    MM(Fe) = 55.8g/mol

    3.73*10^-2mol * 55.8g/mol = 2.082g

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