Abstract In this paper, the reversible reaction of anthocyanins and potassium dichromate solution was used to explore the effect of concentration on chemical equilibrium by adding cation exchange resin without changing the concentration of other substances in the solution. Experimental instruments are simple, reagents are easy to obtain, phenomena are obvious and time is short. It can be used as classroom demonstration experiment or student experiment, and provide real scenes and inquiry cases for classroom teaching.
LAI Yao, HUANG Ping, LI Yue, RAN Ming. Using Ion Exchange Resin to Explore the Effect of Concentration on Chemical Equilibrium[J]. Chinese Journal of Chemical Education, 2022, 43(3): 116-119.
