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Diketahui data potensial reduksi standar berikut. Fe 2 + + 2 e − → Fe E 0 = − 0 , 44 V Pb 2 + + 2 e − → Pb E 0 = − 0 , 13 V Zn 2 + + 2 e − → Zn E 0 = − 0 , 76 V Sn 2 + + 2 e − → Sn E 0 = − 0 , 14 V Reaksi yang dapat berlangsung spontan dan memiliki E 0 sel terbesar adalah ....

Diketahui data potensial reduksi standar berikut.

  

Reaksi yang dapat berlangsung spontan dan memiliki  sel terbesar adalah ....

  1. begin mathsize 14px style Fe to the power of 2 plus sign and Zn yields Fe and Zn to the power of 2 plus sign end style 

  2. begin mathsize 14px style Pb to the power of 2 plus sign and Fe yields Pb and Fe to the power of 2 plus sign end style 

  3. begin mathsize 14px style Zn plus Pb to the power of plus 2 end exponent rightwards arrow Zn to the power of plus 2 end exponent plus Pb end style 

  4. begin mathsize 14px style Sn to the power of 2 plus sign and Zn yields Sn and Zn to the power of 2 plus sign end style 

  5. begin mathsize 14px style Zn to the power of 2 plus sign and Pb yields Zn and Pb to the power of 2 plus sign end style 

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M. Robo

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Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah C.

jawaban yang tepat adalah C.

Pembahasan

Reaksi yang berlangsung spontan akan memiliki sel > 0. Opsi A: Opsi B: Opsi C: Opsi D: Opsi E: Reaksi yang dapat berlangsung spontan dan memiliki sel terbesar adalah . Jadi, jawaban yang tepat adalah C.

Reaksi yang berlangsung spontan akan memiliki begin mathsize 14px style E to the power of 0 end style sel > 0. 

Opsi A: 

begin mathsize 14px style Reduksi colon space Fe to the power of 2 plus sign and 2 e to the power of minus sign yields Fe space space space space space space space space space space space space E to the power of 0 equals minus sign 0 comma 44 space V bottom enclose Oksidasi colon space Zn yields Zn to the power of 2 plus sign and 2 e to the power of minus sign space space space space space space space space space space E to the power of 0 equals plus 0 comma 76 space V space space space plus end enclose Reaksi colon space Fe to the power of 2 plus sign and Zn yields Fe and Zn to the power of 2 plus sign space space space space E to the power of 0 subscript sel equals plus 0 comma 32 space V end style  


Opsi B: 

begin mathsize 14px style Reduksi colon space Pb to the power of 2 plus sign and 2 e to the power of minus sign yields Pb space space space space space space space space space space space E to the power of 0 equals minus sign 0 comma 13 space V bottom enclose Oksidasi colon space Fe yields Fe to the power of 2 plus sign and 2 e to the power of minus sign space space space space space space space space space space E to the power of 0 equals plus 0 comma 44 space V space space space plus end enclose Reaksi colon space Pb to the power of 2 plus sign and Fe yields Pb and Fe to the power of 2 plus sign space space space space E to the power of 0 subscript sel equals plus 0 comma 31 space V end style 


Opsi C: 

begin mathsize 14px style Reduksi colon space Pb to the power of 2 plus sign and 2 e to the power of minus sign yields Pb space space space space space space space space space space space E to the power of 0 equals minus sign 0 comma 13 space V bottom enclose Oksidasi colon space Zn yields Zn to the power of 2 plus sign and 2 e to the power of minus sign space space space space space space space space space space E to the power of 0 equals plus 0 comma 76 space V space space space plus end enclose Reaksi colon space Pb to the power of 2 plus sign and Zn yields Pb and Zn to the power of 2 plus sign space space space space E to the power of 0 subscript sel equals plus 0 comma 63 space V end style 

 

Opsi D: 

begin mathsize 14px style Reduksi colon space Sn to the power of 2 plus sign and 2 e to the power of minus sign yields Sn space space space space space space space space space space space E to the power of 0 equals minus sign 0 comma 14 space V bottom enclose Oksidasi colon space Zn yields Zn to the power of 2 plus sign and 2 e to the power of minus sign space space space space space space space space space space E to the power of 0 equals plus 0 comma 76 space V space space space plus end enclose Reaksi colon space Sn to the power of 2 plus sign and Zn yields Sn and Zn to the power of 2 plus sign space space space space E to the power of 0 subscript sel equals plus 0 comma 62 space V end style 
 

Opsi E: 

begin mathsize 14px style Reduksi colon space Zn to the power of 2 plus sign and 2 e to the power of minus sign yields Zn space space space space space space space space space space space E to the power of 0 equals minus sign 0 comma 76 space V bottom enclose Oksidasi colon space Pb yields Pb to the power of 2 plus sign and 2 e to the power of minus sign space space space space space space space space space space E to the power of 0 equals plus 0 comma 13 space V space space space plus end enclose Reaksi colon space Sn to the power of 2 plus sign and Zn yields Sn and Zn to the power of 2 plus sign space space space space E to the power of 0 subscript sel equals minus sign 0 comma 63 space V end style 


Reaksi yang dapat berlangsung spontan dan memiliki begin mathsize 14px style E to the power of 0 end style sel terbesar adalah begin mathsize 14px style Zn plus Pb to the power of plus 2 end exponent rightwards arrow Zn to the power of plus 2 end exponent plus Pb end style.

Jadi, jawaban yang tepat adalah C.

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