Study on Question No.3 of the 31st Chinese Chemistry Olympiad
XIANG Jia-Min1, MA Hong-Jia1, CHEN Xiao-Feng2, BAO Jian-Chun2, FANG Min2, WU Yong2
1. School of Teacher Education, Nanjing Normal University, Nanjing 210023, China; 2. School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
Abstract This paper studied the third question of the 31st Chinese Chemistry Olympiad, the calculation results showed that different critical values at which sediments could be observed may lead to different answers. It was found that the theoretical calculation was inconsistent with the experiment results. If the activity coefficient was taken into consideration, the theoretical results could be consistent with the experiment results.
XIANG Jia-Min, MA Hong-Jia, CHEN Xiao-Feng, BAO Jian-Chun, FANG Min, WU Yong. Study on Question No.3 of the 31st Chinese Chemistry Olympiad[J]. , 2019, 40(1): 88-92.
