点解熔融的氧化铝冶炼金属铝时,当电路中通过3mol电子时,理论上可以得到多少克金属铝?
如题,..特别是通过3mol电子这个条件怎么用...忘记了...
人气:305 ℃ 时间:2020-02-03 22:09:26
解答
电解时,Al由+3价还原为0价,所以1 mol Al得到3 mol电子.
现在电路通过3 mol电子,说明产生1 mol Al,即27 g.
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