Question

i need some help pls !

The anodic stripping voltammogram for Fe(III) in seawater is shown in A below. Then, the anodic stripping voltammograms obtained after successive standard addition of 4 ppb Fe(III) are shown in B and C. Find the concentration of Fe(III) in the seawater sample. С A В -0.6 -0.7 -0.8 -0.9 -0.7 -0.8 -0.9 -0.6 -0.7 -0.8 -0.9 -0.6 Potential /V versus a reference electrode

Answer 1

Date Ans the anodic stripping volta mmogram. for fe cut) in seel water is shown A -0.8 Potential v Negusgreresence, electrode - Then the anodic stripping Voltammograms obtarned after Successive stendard addition of u PPb Fe (m) a8e gnocen below -0,6 -0. -0,8 reference electrode P -0.6 CS Scanned with CamScanner 0.7 reference electrode

- Fect) in a seawater sample in the presence of increasing amount of rec). & fech) was determined, iron concentration coas obtained using the standard addition method +Adsorptive voltammograms of a digested seawater Sample are shown in fig (A) and calibrate curve in fig CB) & (c) the delter obtened with peak. when the see water son containing feciii) concentration cho canned with em Scanner