From the two standard additions of 50 pm Fe(III) in Figure 16-23, find the concentration of Fe(III)

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From the two standard additions of 50 pm Fe(III) in Figure 16-23, find the concentration of Fe(III) in the seawater. Estimate where the baseline should be drawn for each trace and measure the peak height from the baseline. Consider the volume to be constant for all three solutions.


Figure 16-23

+ 100 pM Fe(ll) +50 pM Fe(lI) 1 nA Seawater --0.4 -0.5 -0.6 --0.7 -0.8 Potential (V vs. Ag AgCI)

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