Electrochemistry Part 2

Electrochemistry Part 2 - 12 . Fr om the g i ve n s t a n...

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Unformatted text preview: 12 . Fr om the g i ve n s t a n dard e l ect r o de po t ent i a l s wh i ch s tate m en t i s co r r e ct? V C 2 + (0 ) + ? ~ . :::. . ( ' ( ) F e =- ,- 2 .87 V a a q _ e " ' ~ a , s ~ N i 2 + ( )'?- : ~ 1 o . [ ' ( , ,\ '; " 'e =- . 23 V a q ; T _ e- . . ... 1'1 1 ' . u } L F e 3 + (aq ) + e- ~ F e 2- '- ( a q) E e = + . 7 7 V Ca 2 + (aq) c a n o x id ize N i (s ) Ni 2 \aq) c a n r e du ce C a 2 + ( a q) F e 3 \a q) c an o x idi z e Ni ( s) 3 + ' ? + F e (aq) c an r e duce C a- ( a q ) ,.- \ ! I ; > :1--' . 1 -- ; [1: . 1 , 1 !.. = +O.J ' t / . . . . " T \I : J + , " " , . ~ . ' ' , ' /1 / l , ~ " Z ,f [ + 2e-7 . + Z , yt /j . =-0 . l fJ It . ' " '1 cJ L ... ' Z ... .- :J Z J-o " ;;t--- I-- ~ At s tan d ar d c o n d I t ions , w h a t s pec ies a re p ro duc e d at e a ch el ectr o d e ? 2 + C ./u . + 2 t ?-- ;, . r : . . :-u 2+ A . Cu i s p r o d u c ed a t th e c at h o d e a n d Z n a t t h e ano de 2+ 2+ B . C u i s pr o duc e d a t t he cath o d e a nd Zn a t t he a n od e ~...
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This note was uploaded on 11/08/2011 for the course ECON 1B03 taught by Professor Hannahholmes during the Fall '08 term at McMaster University.

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Electrochemistry Part 2 - 12 . Fr om the g i ve n s t a n...

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