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Data potensial elektrode standar: Cu2++2e−→Cu   E0=−0,34 voltAg++e−→Ag       E0=+0,80 volt  Reaksi  Cu+2Ag+→Cu2++2Ag memiliki potensial sel sebesar ....

Pertanyaan

Data potensial elektrode standar:


Cu to the power of 2 plus sign and 2 e to the power of minus sign yields Cu space space space E to the power of 0 equals minus sign 0 comma 34 space volt Ag to the power of plus sign and e to the power of minus sign yields Ag space space space space space space space E to the power of 0 equals plus 0 comma 80 space volt 


Reaksi  Cu and 2 Ag to the power of plus sign yields Cu to the power of 2 plus sign and 2 Ag memiliki potensial sel sebesar ....

  1. 0,06 voltspace 

  2. 0,46 voltspace 

  3. 0,57 voltspace 

  4. 1 ,14 voltspace 

  5. 1 ,26 voltspace 

S. Lubis

Master Teacher

Mahasiswa/Alumni Universitas Sumatera Utara

Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah D.

Pembahasan

Potensial sel (E to the power of 0 subscript sel) merupakan selisih antara nilai potensial anode dan katode suatu sel elektrokimia. Nilai potensial sel merupakan selisih nilai potensial katode dikurangi anode, yang dapat dirumuskan


table attributes columnalign right center left columnspacing 0px end attributes row cell E to the power of 0 subscript sel end cell equals cell E to the power of 0 subscript italic k italic a italic t italic o italic d italic e end subscript minus sign E to the power of 0 subscript italic a italic n italic o italic d italic e end subscript end cell row blank equals cell E to the power of 0 subscript italic r italic e italic d italic u italic k italic s italic i end subscript minus sign E to the power of 0 subscript italic o italic k italic s italic i italic d italic a italic s italic i end subscript end cell end table 


Nilai potensial sel reaksi diatas adalah


table attributes columnalign right center left columnspacing 0px end attributes row cell E to the power of 0 subscript sel end cell equals cell E to the power of 0 subscript italic k italic a italic t italic o italic d italic e end subscript minus sign E to the power of 0 subscript italic a italic n italic o italic d italic e end subscript end cell row blank equals cell E to the power of 0 subscript Ag minus sign E to the power of 0 subscript Cu end cell row blank equals cell plus 0 comma 80 minus sign left parenthesis minus sign 0 comma 34 right parenthesis space volt end cell row blank equals cell 1 comma 14 space volt end cell end table 


Jadi, jawaban yang tepat adalah D.

156

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