Diketahui beberapa potensial reduksi senyawa berikut: Al3+(aq)+3e→Al(s)      E∘=−1,66 VSn2+(aq)+2e→Sn(s)   E∘=−0,14 VZn2+(aq)+2e→Zn(s)   E∘=−0,76 VCu2+(aq)+2e→Cu(s)  E∘=+0,34 VAg+(aq)+e→Ag(s)      E∘=+0,80 V Berdasarkan data tersebut, reaksi yang dapat berlangsung spontan adalah ....

Pertanyaan

Diketahui beberapa potensial reduksi senyawa berikut:

A l to the power of 3 plus end exponent left parenthesis a q right parenthesis plus 3 e rightwards arrow A l left parenthesis s right parenthesis space space space space space space E degree equals negative 1 comma 66 space V  S n to the power of 2 plus end exponent left parenthesis a q right parenthesis plus 2 e rightwards arrow S n left parenthesis s right parenthesis space space space E degree equals negative 0 comma 14 space V  Z n to the power of 2 plus end exponent left parenthesis a q right parenthesis plus 2 e rightwards arrow Z n left parenthesis s right parenthesis space space space E degree equals negative 0 comma 76 space V  C u to the power of 2 plus end exponent left parenthesis a q right parenthesis plus 2 e rightwards arrow C u left parenthesis s right parenthesis space space E degree equals plus 0 comma 34 space V  A g to the power of plus left parenthesis a q right parenthesis plus e rightwards arrow A g left parenthesis s right parenthesis space space space space space space E degree equals plus 0 comma 80 space V

Berdasarkan data tersebut, reaksi yang dapat berlangsung spontan adalah ....

  1. C u divided by C u to the power of 2 plus end exponent divided by divided by A l to the power of 3 plus end exponent divided by A l

  2. S n divided by S n to the power of 2 plus end exponent divided by divided by Z n to the power of 2 plus end exponent divided by Z n

  3. Z n divided by Z n to the power of 2 plus end exponent divided by divided by A l to the power of 3 plus end exponent divided by A l

  4. A g divided by A g to the power of plus divided by divided by C u to the power of 2 plus end exponent divided by C u

  5. A l divided by A l to the power of 3 plus end exponent divided by divided by A g to the power of plus divided by A g

A. Ratna

Master Teacher

Mahasiswa/Alumni Universitas Negeri Malang

Jawaban terverifikasi

Pembahasan

R e a k s i space s p o n tan space m e r u p a k a n space r e a k s i space y a n g space t e r j a d i space tan p a space d i p i c u space e n e r g y space l i s t r i k comma space t a p i space j u s t r u space m e n g h a s i l k a n space e n e r g y space l i s t r i k. space K e m u d i a n space h a r g a space E o s e l space d a r i space r e a k s i space t e r s e b u t space a d a l a h space p o s i t i f. space  A l space rightwards arrow space A l to the power of plus 3 space end exponent plus space 3 e space space space space space space space space space space space space space space space space space space space space E to the power of o space space space space space space equals space plus 1 comma 66 space v o l t space  bottom enclose 3 A g to the power of plus space plus space 3 e space rightwards arrow space 3 A g space space space space space space space space space space space space space space space E to the power of o space space space space space space equals space plus space 0 comma 80 space v o l t space plus end enclose  space A l space plus space 3 A g to the power of plus space rightwards arrow space A l to the power of plus 3 end exponent space plus space 3 A g space space E to the power of o s e l space equals space plus 2 comma 44 space v o l t

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Diketahui ​​Eo​:  Zn2+ ∣ ZnFe2− ∣ FePb2+ ∣ PbCu2+ ∣ CuAg2+ ∣ Ag​=====​−0,76 V−0,44 V−0,13 V+0,34 V+0,80 V​  Diagram sel yang berlangsung spontan adalah ...

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