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氧化还原反应中,电子得失守恒是一条基本规律,依据失电子原子的物质的量×化合价升高值=得电子原子的物质的量×化合价降低值这条规律,就找到解题的基本依据,本文通过例题详解,以期找到解决这类问题的基本方法.一、用得失电子平衡确定生成物例1将含有0.4 mol Cu SO4和0.2 mol Na Cl的水溶液1 L,用惰性电极电解一段时间后,在一个电极上得到0.3 mol Cu,则
Redox reaction, the electronic loss of conservation is a basic law, based on the loss of electron atoms × the valence of the amount of material value = the number of atoms in the electron valence reduction value of this law to find the basic basis for solving problems, In this paper, through examples to explain in detail, in order to find the basic method to solve such problems.First, with the balance of gains and losses to determine the product generated Example 1 will contain 0.4 mol Cu SO4 and 0.2 mol NaCl aqueous solution 1 L, with an inert electrode electrolysis for a period of time, At 0.3 mol Cu on one electrode, then