从溶液酸碱度、反应物浓度、温度三个方面,探究草酸和酸性高锰酸钾溶液反应时溶液褪色时间的不同。提出设想:利用不同浓度硫代硫酸钠溶液和硫酸反应作为浓度对化学反应速率影响的验证实验,利用同浓度草酸溶液与酸性高锰酸钾溶液反应作为温度对化学反应速率影响的验证实验。并用实验验证了该设想的可行性。 From the pH value of the solution, the concentration of the reactants, the temperature of three aspects, to explore oxalic acid and acid solution of potassium permanganate reaction solution fade time difference. The hypothesis is as follows: Using the different concentrations of sodium thiosulfate solution and sulfuric acid as the verification experiment of the effect of concentration on the chemical reaction rate, the reaction of the same concentration of oxalic acid solution and acidic potassium permanganate solution was used as the verification experiment of the effect of temperature on the chemical reaction rate. The feasibility of this concept is verified by experiments.