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Diketahui data potensial reduksi sebagai berikut: E ∘ Ca 2 + / Ca = − 2 , 87 V E ∘ Pb 2 + / Pb = − 0 , 13 V E ∘ Mg 2 + / Mg = − 2 , 37 V E ∘ Au 3 + / Au = + 1 , 50 V Berdasarkan data tersebut, reaksi yang berlangsung spontan adalah ...

Diketahui data potensial reduksi sebagai berikut:

Berdasarkan data tersebut, reaksi yang berlangsung spontan adalah ...

  1. Mg space divided by space Mg to the power of 2 plus space end exponent divided by divided by space Ca to the power of 2 plus end exponent divided by Ca

  2. Pb space divided by space Pb to the power of 2 plus end exponent space divided by divided by space Mg to the power of 2 plus end exponent divided by Mg

  3. Au space divided by space Au to the power of 3 plus end exponent space divided by divided by space Pb to the power of 2 plus end exponent divided by Pb

  4. Ca space divided by space Ca to the power of 2 plus space end exponent divided by divided by space Mg to the power of 2 plus end exponent divided by Mg

  5. Mg space divided by space Mg to the power of 2 plus space end exponent divided by divided by space Pb to the power of 2 plus end exponent divided by Pb

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Reaksi space yang space dapat space berlangsung space spontan space adalah space reaksi space yang space memiliki space nilai space straight E degree space positif.  Rumus space straight E degree space adalah space colon    space space space space space space space space space space space space space space space straight E degree equals space straight E degree Reduksi minus straight E degree space oksidasi    Perlu space diketahui space bahwa space straight E degree space Reduksi space greater than space straight E degree space Oksidasi. space    Reduksi space merupakan space peristiwa space penurunan space bilangan space oksidasi space dan space oksidasi space merupakan space peristiwa space kenaikan space bilangan space oksidasi. space    Setelah space dihitung space satu space per space satu comma space maka space jawaban space yang space tepat space adalah space left parenthesis spontan right parenthesis colon space  space space space space space space space space space space space space space space space Ca divided by Ca to the power of 2 plus end exponent space divided by divided by space Mg to the power of 2 plus end exponent space divided by Mg space  straight E degree equals space straight E degree Reduksi minus straight E degree space oksidasi space  space space space space space equals space straight E degree Mg minus straight E degree space Ca space  space space space space space equals space minus 2 comma 37 space straight V space – space left parenthesis negative 2 comma 87 space straight V right parenthesis  space equals space plus 0 comma 50 space straight V

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Diketahui : Al 3 + ( a q ) + 3 e − → Al ( s ) E ∘ = − 1 , 66 volt Zn 2 + ( a q ) + 2 e − → Ag ( s ) E ∘ = − 0 , 76 volt Notasi selreaksi yang benar agar reaksi berlangsung spontan adalah ....

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