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`Ag^(+)//Ag` इलेक्ट्रोड का मानक अपचयन विभव 298 K पर 0.799V है यदि AgI का विलेयता गुणनफल `(K_(sp))8.7xx10^(-17)` हो, तो AgI के संतृप्त विलयन में `Ag^(+)//Ag` इलेक्ट्रोड का विभव ज्ञात करो ।

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`E_(Ag^(+)//Ag)=E_(Ag^(+)//Ag)^(@)+(0.059)/(1)"log"[Ag^(+)]`
तथा `K_(sp_(AgI))=[Ag^(+)][I^(-)]`
संतृप्त विलयन के लिए, `[Ag^(+)]=[I^(-)]`
`:.[Ag^(+)]sqrt(K_(sp_(AgI)))=sqrt(8.7xx10^(-17))=9.32xx10^(-9)`
`E_(Ag^(+)//Ag)=0.799+(0.059)/(1)"log"9.32xx10^(-9)=0.32V`

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