如果我用以下的儀器,
Zn metal( anode), Ag metal( cathode)
NaNO3 (electrolyte)
可否試寫half equation:
(+ve): Na+ + e- -> Na (會這樣的嗎???????應冇可能)
(-ve): Zn -> Zn^2+ + 2e-
overall: 2Na+ + Zn -> Zn^2+ + 2Na
咁咪oppose spontaneous reactions?
咁會冇電流嗎?
正確的equation應點寫?
thanks
我想問chemical cell equation (plz help!!!!!!!)
2007-04-30 9:27 pm
回答 (1)
2007-04-30 9:50 pm
✔ 最佳答案
(+ve): O2 + 2H2O +4e->4OH-(-ve): Zn > Zn^2+2e-
overall:O2+2Zn+2H2O>2Zn(OH)2(s)
Na+ + e- -> Na (冇可能)
Ag is inert electrode in this case
參考: book
收錄日期: 2021-04-12 21:18:09
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