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Berdasarkan data : Mg2++2e−→Mg    E∘=−2,37 voltFe2++2e−→Fe     E∘=−0,44 voltSn2++2e−→Sn     E∘=−0,14 voltCu2++2e−→Cu     E∘=+0,34 volt  Maka, reaksi yang  dapat berlangsung dalam keadaan standar adalah ...

Pertanyaan

Berdasarkan data :

Mg to the power of 2 plus sign and 2 e to the power of minus sign yields Mg space space space space E degree equals minus sign 2 comma 37 space volt Fe to the power of 2 plus sign and 2 e to the power of minus sign yields Fe space space space space space E degree equals minus sign 0 comma 44 space volt Sn to the power of 2 plus sign and 2 e to the power of minus sign yields Sn space space space space space E degree equals minus sign 0 comma 14 space volt Cu to the power of 2 plus sign and 2 e to the power of minus sign yields Cu space space space space space E degree equals plus 0 comma 34 space volt 

Maka, reaksi yang  dapat berlangsung dalam keadaan standar adalah ...space 

  1. Sn to the power of 2 plus sign and Cu yields Sn and Cu to the power of 2 plus sign 

  2. Mg to the power of 2 plus sign and Fe yields Mg and Fe to the power of 2 plus sign 

  3. Fe to the power of 2 plus sign and Sn yields Fe and Sn to the power of 2 plus sign 

  4. Cu to the power of 2 plus sign and Fe yields Cu and Fe to the power of 2 plus sign 

  5. Mg to the power of 2 plus sign and Sn yields Mg and Sn to the power of 2 plus sign 

S. Lubis

Master Teacher

Jawaban terverifikasi

Jawaban

yang berlangsung secara standar adalah Cu to the power of 2 plus sign and Fe yields Cu and Fe to the power of 2 plus sign.

Pembahasan

Jawaban yang tepat adalah D.

Deret volta merupakan urutan logam-logam berdasarkan kenaikan nilai potensial elektrode standarnya. Reaksi yang berlangsung secara standar adalah reaksi yang berlangsung spontan.space 

  • E degree space sel double bond E degree space Sn bond E degree space Cu equals open parentheses negative sign 0 comma 14 close parentheses minus sign open parentheses 0 comma 34 close parentheses equals minus sign 0 comma 48 space left parenthesis tidak space spontan right parenthesis 
  • E degree space sel double bond E degree space Mg bond E degree space Fe equals open parentheses negative sign 2 comma 37 close parentheses minus sign open parentheses negative sign 0 comma 44 close parentheses equals minus sign 1 comma 93 space left parenthesis tidak space spontan right parenthesis 
  • E degree space sel double bond E degree space Fe bond E degree space Sn equals open parentheses negative sign 0 comma 44 close parentheses minus sign open parentheses negative sign 0 comma 14 close parentheses equals minus sign 0 comma 30 space left parenthesis tidak space spontan right parenthesis 
  • E degree space sel double bond E degree space Cu bond E degree space Fe equals 0 comma 34 minus sign open parentheses negative sign 0 comma 44 close parentheses equals 0 comma 78 space open parentheses spontan close parentheses 
  • E degree space sel double bond E degree space Mg bond E degree space Sn equals open parentheses negative sign 2 comma 37 close parentheses minus sign open parentheses negative sign 0 comma 14 close parentheses equals minus sign 2 comma 23 space left parenthesis tidak space dpontan right parenthesis 

Jadi, yang berlangsung secara standar adalah Cu to the power of 2 plus sign and Fe yields Cu and Fe to the power of 2 plus sign.

14

5.0 (1 rating)

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