Posted by **lucy** on Friday, February 19, 2010 at 2:04pm.

how do i calculate a concentration ratio of oxidised to reduced cytochrome c Fe2+ to Fe3+

given at 25 C and pH7

E(mV) as 100

and absorbance at 550nm as 1.5

E is relative to standard hydrogen electrode

i know im supposed ot use the nernst equation i just don't know how im supposed to use this data to something which i can use in the nernst eq

please help

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