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有人认为:Na_3CO_3溶液与稀H_2SO_4反应的实质是Na_2CO_3水解产生的OH~-与酸中的H~+中和为水,从而促进反应完成。例如《中学化学教学参考》1984年第4期《试论中学化学启发式教学中三种思维能力的培养》一文中就有以上说法。我认为:将Na_2CO_3溶液和稀H_2SO_4反应的实质看成是因水解而促进反应完成,是不正确的,现将本人一些粗浅看法写在下面,并与赵老师商榷。
Some people think that: The essence of the reaction of Na_3CO_3 solution with dilute H_2SO_4 is that the OH~- generated by the hydrolysis of Na_2CO_3 and the H+ in the acid are neutralized to water, which promotes the completion of the reaction. For example, the “High School Chemistry Teaching Reference” No. 4, 1984, “On the cultivation of three kinds of thinking abilities in chemistry heuristic teaching in middle schools” has the above statement. I think that it is incorrect to regard the essence of Na_2CO_3 solution and dilute H_2SO_4 reaction as promoting the completion of the reaction due to hydrolysis. I now write some of my superficial views below and discuss it with Professor Zhao.