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Diketahui potensial standar sel berikut.undefined 


begin mathsize 14px style Mg space vertical line space Mg to the power of 2 plus sign space parallel to space Ag to the power of plus sign space vertical line space Ag space space space italic E degree subscript sel space equals space plus 3 comma 17 space V Pb space vertical line space Pb to the power of 2 plus sign space parallel to space Ag to the power of plus sign space vertical line space Ag space space space italic E degree subscript sel space equals space plus 0 comma 94 space V Zn space vertical line space Zn to the power of 2 plus sign space parallel to space Pb to the power of 2 plus sign space vertical line space Pb space space space italic E degree subscript sel space equals space plus 0 comma 63 space V end style 


Tentukan harga potensial standar sel:undefined 


b. begin mathsize 14px style Zn space vertical line space Zn to the power of 2 plus sign space parallel to space Ag to the power of plus sign space vertical line space Ag end style 

S. Hidayati

Master Teacher

Mahasiswa/Alumni Universitas Indonesia

Jawaban terverifikasi

Jawaban

untuk notasi sel begin mathsize 14px style Zn open vertical bar Zn to the power of 2 plus sign close vertical bar open vertical bar Ag to the power of plus sign close vertical bar Ag end stylememiliki nilai begin mathsize 14px style E subscript sel superscript degree equals plus 1 comma 57 space V end style.

Pembahasan

Diketahui:
begin mathsize 14px style Mg open vertical bar Mg to the power of 2 plus sign close vertical bar open vertical bar Ag to the power of plus sign close vertical bar Ag space space space space space E subscript sel superscript degree equals plus 3 comma 17 space V Pb open vertical bar Pb to the power of 2 plus sign close vertical bar open vertical bar Ag to the power of plus sign close vertical bar Ag space space space space space space E subscript sel superscript degree equals plus 0 comma 94 space V Zn open vertical bar Zn to the power of 2 plus sign close vertical bar open vertical bar Pb to the power of 2 plus sign close vertical bar Pb space space space space space E subscript sel superscript degree equals plus 0 comma 63 space V end style  

Ditanyakan: 
undefined      begin mathsize 14px style E subscript sel superscript degree equals... space V end style 

Penyelesaian:
Ingat bahwa notasi sel menunjukkan menunjukkan begin mathsize 14px style Oksidasi parallel to Reduksi end style 

  • begin mathsize 14px style Mg open vertical bar Mg to the power of 2 plus sign close vertical bar open vertical bar Ag to the power of plus sign close vertical bar Ag end style
    begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell E subscript sel superscript degree end cell equals cell E subscript reduksi superscript degree minus sign E subscript oksidasi superscript degree end cell row cell plus 3 comma 17 space V end cell equals cell E subscript Ag superscript degree minus sign E subscript Mg superscript degree end cell row cell E subscript Ag superscript degree end cell equals cell plus 3 comma 17 space V plus E subscript Mg superscript degree end cell end table end style 
     
  • begin mathsize 14px style Pb open vertical bar Pb to the power of 2 plus sign close vertical bar open vertical bar Ag to the power of plus sign close vertical bar Ag end style
    begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell E subscript sel superscript degree end cell equals cell E subscript reduksi superscript degree minus sign E subscript oksidasi superscript degree end cell row cell plus 0 comma 94 space V end cell equals cell E subscript Ag superscript degree minus sign E subscript Pb superscript degree end cell row cell plus 0 comma 94 space V end cell equals cell plus 3 comma 17 space V plus E subscript Mg superscript degree minus sign E subscript Pb superscript degree end cell row cell E subscript Pb superscript degree end cell equals cell negative sign 0 comma 94 space V plus 3 comma 17 space V plus E subscript Mg superscript degree end cell row cell E subscript Pb superscript degree end cell equals cell plus 2 comma 23 space V plus E subscript Mg superscript degree end cell end table end style   
     
  • begin mathsize 14px style Zn open vertical bar Zn to the power of 2 plus sign close vertical bar open vertical bar Pb to the power of 2 plus sign close vertical bar Pb end style 
    begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell E subscript sel superscript degree end cell equals cell E subscript reduksi superscript degree minus sign E subscript oksidasi superscript degree end cell row cell plus 0 comma 63 space V end cell equals cell E subscript Pb superscript degree minus sign E subscript Zn superscript degree end cell row cell plus 0 comma 63 space V end cell equals cell plus 2 comma 23 space V plus E subscript Mg superscript degree minus sign E subscript Zn superscript degree end cell row cell E subscript Zn superscript degree end cell equals cell negative sign 0 comma 63 space V plus 2 comma 23 space V plus E subscript Mg superscript degree end cell row cell E subscript Zn superscript degree end cell equals cell plus 1 comma 60 space V plus E subscript Mg superscript degree end cell end table end style  
     
  • begin mathsize 14px style Zn open vertical bar Zn to the power of 2 plus sign close vertical bar open vertical bar Ag to the power of plus sign close vertical bar Ag end style 
    undefined   

Dengan demikian, untuk notasi sel begin mathsize 14px style Zn open vertical bar Zn to the power of 2 plus sign close vertical bar open vertical bar Ag to the power of plus sign close vertical bar Ag end stylememiliki nilai begin mathsize 14px style E subscript sel superscript degree equals plus 1 comma 57 space V end style.

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