摘要
用与讨论Ce4＋和Fe2＋的反应相似的方法．判断一个反应是否为对称反应，应该看滴定曲线上电位突跃点和化学计量点是否重合．重合者为对称反应，否则为非对称反应，若从反应物之间的摩尔比或看氧化还原反应中氧化剂和还原剂得失电子数目是否相等去判断一个反应是否为对称反应，有时会导致错误的结论．只有把对称反应的电位突跃点当作化学计量点在理论上才是严谨可靠的．
Using the method which is similiar to that of evaluating the reaction of Ce4+ and Fe2+ to judge whether a reaction is symmetrical or not, we should see whether the Potential Sudden leaping point coincides with the equal equivalent point on the titration curve. If so we call it symmetrical reaction. or else we call it non-symmetrical reaction. Sometimes it will result in wrong conclusion. if we judge a reaction to be symmetrical or non-symmetrical by mole proportion of the reacted matter or by counting the lose or obtain electron number of oxidant and reductant in the oxidization-reduction reaction. Only when we take the potential Sudden leaping point of the symmetrical reaction as the equal equivalent point is it theoritically rigorous and reliable.
出处
《周口师范高等专科学校学报》
1999年第5期24-26,共3页
Journal of Zhoukou Teachers College
关键词
电位滴定
对称反应
突跃点
化学计量点
摩尔比
electric potential titration symmetric reaction leaping point egual equivalent point
