1. +0.74V
2.+1.66V
3.+2.46V
4.+4.06V
Given the reaction:Al(s)+3Ag+ --> Al3+ +3Ag(s) Based on Reference Table Adv-10 what is the potential (E)^0 for the overall reaction?
2020-05-20 2:50 pm
回答 (1)
2020-05-20 4:00 pm
Refer to: https://castlelearning.com/review/reference/chem%20table%20adv10.htm
Al³⁺(aq) + 3e⁻ → Al(s) E° = -1.66 V
Ag⁺(aq) + e⁻ → Ag(s) E° = +0.80 V
Al(s) + 3Ag⁺(aq) → Al³⁺(aq) +3Ag(s) E°(cell)
E°(cell) = E°(red) - E°(oxid) = (+0.80) - (-1.66) V = +2.46 V
The answer: 3. +2.46 V
Al³⁺(aq) + 3e⁻ → Al(s) E° = -1.66 V
Ag⁺(aq) + e⁻ → Ag(s) E° = +0.80 V
Al(s) + 3Ag⁺(aq) → Al³⁺(aq) +3Ag(s) E°(cell)
E°(cell) = E°(red) - E°(oxid) = (+0.80) - (-1.66) V = +2.46 V
The answer: 3. +2.46 V
收錄日期: 2021-05-01 22:34:33
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