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本刊1983年第5期发表的拙文“怎样确定两种盐溶液混和发生水解反应的化学方程式”中,Fe_2(SO_4)_3与Na_2S两溶液反应一例的Fe_2S_3完全水解生成Fe(OH)_3的反应是错误的。除向编者、读者致歉外,再说明如下,请读者指正。 Fe_2(SO_4)_3跟Na_2S两溶液的反应是较复杂的。 (1)当把Na_2S溶液滴入过量Fe_2(SO_4)_3溶液时,由于有关的电极电位是
In the article “How to Determine the Chemical Equations for Hydrolysis of Two Salt Solutions Mixed” published in the 5th issue of 1983, Fe_2(S_3)_3 reacts with Na_2S and a solution of Fe_2S_3 is completely hydrolyzed to form Fe(OH)_3. The reaction was wrong. In addition to apologizing to the editors and readers, I would like to explain them as follows. Please correct me. The reaction of Fe_2(SO_4)_3 with Na_2S is more complicated. (1) When the Na 2 S solution is dropped into the excess Fe 2 (SO 4 ) 3 solution, the electrode potential is