同离子效应在医疗、药剂、检验和护理等专业中都要进行讲解。而以往的演示实验是用试管进行操作,对比不强烈,能见度低。为了便于同学们观察,我们对此实验进行了改进。1　实验原理同离子效应是指在弱电解质溶液中,加入与弱电解质具有相同离子的强电解质后,使电离平衡移动,从而降 The same ion effect in medical, pharmaceutical, testing and nursing professionals have to explain. The previous demonstration experiment is to operate with a test tube, the contrast is not intense, low visibility. In order to facilitate the students to observe, we have improved this experiment. 1 Experimental principle The same ion effect refers to the weak electrolyte solution, adding weak electrolytes with the same ion strong electrolyte, the ionization equilibrium shift, which reduces