Berikut adalah data potensial reduksi standar (E0) untuk beberapa kation. Co2+ + 2e → Co    Eo = −0,28 voltCr3+ + 3e → Cr      Eo = −0,74 voltCu2+ + 2e → Cu    Eo = +0,34 voltPb2+ + 2e → Pb     Eo = −0,13 volt Sel Volta yang memiliki potensial sel paling besar adalah.......

Pertanyaan

Berikut adalah data potensial reduksi standar open parentheses E to the power of 0 close parentheses untuk beberapa kation.

C o to the power of 2 plus end exponent space plus space 2 e space rightwards arrow space C o space space space space E to the power of o space equals space minus 0 comma 28 space v o l t  C r to the power of 3 plus end exponent space plus space 3 e space rightwards arrow space C r space space space space space space E to the power of o space equals space minus 0 comma 74 space v o l t  C u to the power of 2 plus end exponent space plus space 2 e space rightwards arrow space C u space space space space E to the power of o space equals space plus 0 comma 34 space v o l t  P b to the power of 2 plus end exponent space plus space 2 e space rightwards arrow space P b space space space space space E to the power of o space equals space minus 0 comma 13 space v o l t

Sel Volta yang memiliki potensial sel paling besar adalah.......

  1. CulCu to the power of 2 plus sign parallel to Pb to the power of 2 minus sign vertical line Pb

  2. C o lC o to the power of 2 plus end exponent parallel to C r to the power of 3 plus end exponent vertical line C r

  3. C r lC r to the power of 3 plus end exponent parallel to C u to the power of 2 plus end exponent vertical line C u

  4. C u lC u to the power of 2 plus end exponent parallel to C r to the power of 3 plus end exponent vertical line C r

  5. P b l P b to the power of 2 plus end exponent parallel to C r to the power of 3 plus end exponent vertical line C r

S. Lubis

Master Teacher

Mahasiswa/Alumni Universitas Sumatera Utara

Jawaban terverifikasi

Pembahasan

S e l space v o l t a space a d a l a h space r a n g k a i a n space s e l space e l e k t r o k i m i a space y a n g space m e n g h a s i l k a n space a r u s space l i s t r i k. space S e l space v o l t a space t e r d i r i space a t a s space e l e k t r o d a space t e m p a t space b e r l a n g s u n g n y a space r e a k s i space o k s i d a s i space d i s e b u t space a n o d a left parenthesis e l e k t r o d e space n e g a t i f right parenthesis comma space d a n space t e m p a t space b e r l a n g s u n g n y a space r e a k s i space r e d u k s i space d i s e b u t space k a t o d a left parenthesis e l e k t r o d e space p o s i t i f right parenthesis. space  A g a r space m e n g h a s i l k a n space a r u s space l i s t r i k space m a k a space E ˚ s e l space greater than space 0 comma space k a r e n a space E ˚ s e l space equals space E subscript r e d end subscript space – space E subscript o k s end subscript comma space m a k a space a g a r space h a s i ln y a space p o s i t i f comma space p o t e n s i a l space r e d u k s i space h a r u s space l e b i h space b e s a r space d a r i p a d a space p o t e n s i a l space o k s i d a s i.  S e l space v o l t a space y a n g space m e m i l i k i space p o t e n s i a l space s e l space p a l i n g space b e s a r space j i k a space u n s u r space y a n g space m e n g a l a m i space r e d u k s i space m e m i l i k i space n i l a i space p a l i n g space b e s a r space d a l a m space h a l space i n i space a d a l a h space C u to the power of 2 plus end exponent vertical line C u space d a n space s e b a l i k n y a comma space u n s u r space y a n g space m e n g a l a m i space o k s i d a s i space a d a l a h space u n s u r space d e n g a n space n i l a i space p o t e n s i a l space r e d u k s i space p a l i n g space k e c i l comma space d a l a m space h a l space i n i space a d a l a h space C r to the power of 3 plus end exponent vertical line C r.

E to the power of o s e l space equals space E to the power of o r e d space minus space E to the power of o o k s  E to the power of o s e l space equals space E to the power of o C u space minus space E to the power of o C r  space space space space space space space space space space space space equals space plus 0 comma 34 space minus space left parenthesis negative 0 comma 74 right parenthesis  space space space space space space space space space space space space equals space plus 1 comma 18 space v o l t

 

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