Question

Could I get some help on part D? And if you could see if I did the rest right, that would be awesome

A gave the following results. The unknown and standard additions were made up mL volume. series of standard additions of Cu" in acidified tap water measured by anodic g voltammetry to the same final 100.0 Added Cu standard (ppb) sャ 100 200 300 400 500 Current (uA) 0.599 0.774 0.943 1.128 1.314 1.544 sampl a) Calculate the volumes you would use of the acidified tap water and 1000 ppm (parts per milion) Cu standard to make each of the 100.0 mL samples above. 10o) (100 XF, ol mL Cva+ヤ9gnarndía x:,ohnllu2+ 9g,@g A ナ looopqm X = (20)( 160 ) ャ99-95 b) What chemical reaction occurs during concentration stage of the analysis? a+ c) What chemical reaction occurs during stripping stage? d) Find the concentration of Cu? in the acidified tap water (include the graph) and clearly show your method and answer. You do not need to correct the ppb or current because the final sample volumes were always 100.0 mL and the concentration from the tap water constant. sample was

Answer 1

ee cone cme ·04mレ 01 mレ 99.97 ←ト0.3 mL