Home

Citation: Li Zhou, Yulin Ma, Qiaohong Liu, Mei Yan, Yunchen Du. Design of physical chemistry experiment based on comprehensive ability training: a case study of “determination of liquid-phase reaction equilibrium constant”[J]. University Chemistry, ;2026, 41(7): 274-281. doi: 10.12461/PKU.DXHX202505051 shu

Design of physical chemistry experiment based on comprehensive ability training: a case study of “determination of liquid-phase reaction equilibrium constant”

National Demonstration Center for Experimental Chemistry Education (Harbin Institute of Technology), School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang Province, China

Corresponding author: Mei Yan, Yunchen Du,
Received Date: 18 May 2025
Revised Date: 29 July 2025

This study aims to enhance students’ comprehensive abilities through innovative teaching design for confirmatory physical chemistry experiments. We established an inquiry-based teaching model following the sequence of “theoretical foundation → experimental verification → theoretical feedback”, while integrating research training throughout all experimental phases. Using the “determination of liquid-phase reaction equilibrium constant” experiment as an example, we implemented several methodological improvements: employing HNO₃ solution instead of water as the solvent for preparing initial Fe(NO₃)₃ and KSCN solutions, and adopting the “half-amount method” for preparing Fe(NO₃)₃ reaction solutions. The experimental design systematically investigated the effects of ionic strength, reactant concentration, [H⁺] concentration, and temperature on equilibrium constants, thereby expanding both the depth and breadth of the experimental content. This enhanced approach significantly increased the experiment’s challenge level and comprehensiveness. Within limited classroom hours, it effectively fostered students’ scientific thinking and innovation capabilities while strengthening their communication and teamwork skills, thereby laying a solid foundation for their overall quality improvement and comprehensive development.
- Ionic strength,
- Half-amount method,
- Equilibrium constant,
- Innovative talent cultivation
1. [1]
2. [2]
3. [3]
4. [4]
5. [5]
6. [6]
7. [7]
8. [8]
9. [9]
10. [10]
11. [11]
12. [12]
13. [13]
14. [14]
15. [15]
  W.R. Richard, J. Chem. Educ. 1963, 40(2), 71.
1. [1]
  Yongwen Shen , Wei Wang , Qinghua Feng , Jingfeng Lan , Guangnong Lu , Xiaolong Li , Liu Yang , Xiangyang Xu , E Yu , Li Wu , Xinping Hui , Yongmin Liang . Continuous Construction of National Demonstration Center for Experimental Education Based on Innovative Talent Training. University Chemistry, 2024, 39(7): 172-179. doi: 10.12461/PKU.DXHX202405083
2. [2]
  Shilei Ding , Hongmiao Huang , Hang Dai , Xu Feng . Design and Application of Advanced Digital Teaching Mode Based on Cultivating Innovative Talents in Inorganic Chemistry. University Chemistry, 2026, 41(4): 1-7. doi: 10.12461/PKU.DXHX202505081
3. [3]
  Lihong Niu , Huaping Xu , Ying Yu . Synergizing Ideological and Political Education with Professional Education: Overcoming Challenges in Cultivating Innovative Talents in Basic Sciences under New Circumstances. University Chemistry, 2024, 39(6): 7-11. doi: 10.3866/PKU.DXHX202311090
4. [4]
  Ying Zhu , Xiaobo Sun , Cunming Yu , Guangsheng Wang . Role of Virtual Experiments in Cultivating Top Innovative Talents at Beihang University: a Case of the Exploration and Design of Bioinspired Superhydrophobic Interfaces. University Chemistry, 2026, 41(2): 54-58. doi: 10.12461/PKU.DXHX202502037
5. [5]
  Qifeng Zheng , Aimei Gao , Ruirui Zhao . Exploring a New Undergraduate Training Model for Chemistry Majors through “Science-Education-Innovation Integration” in the AI Era. University Chemistry, 2026, 41(2): 161-167. doi: 10.12461/PKU.DXHX202502056
6. [6]
  Wei Zhao , Ying Gan , Xihe Bi . Nurturing with Dedication: Springing into Excellence in Chemistry Postgraduate Education at Northeast Normal University. University Chemistry, 2024, 39(6): 29-36. doi: 10.3866/PKU.DXHX202312032
7. [7]
  Jiali Lin , Shuting Wu , Cheng Zheng , Zian Lin , Qiaohua Wei , Shoutian Zheng . Construction and Practice of National Chemical Experiment Teaching Demonstration Center in Local Universities under the Background of “Double First-Class”. University Chemistry, 2024, 39(7): 129-139. doi: 10.12461/PKU.DXHX202405043
8. [8]
  Jing Yan , Haiyuan Wang , Jing Chang , Fubao Xing , Zhen Zhang , Mingyue Chen , Xiaofeng Li , Yu Liu , Yi Li , Xia Feng . Exploration and Practice in the Teaching of Chemistry Research Training Course. University Chemistry, 2024, 39(10): 236-241. doi: 10.12461/PKU.DXHX202404108
9. [9]
  Chunfang Zhang , Yuehua Liu , Lin Yang , Wenhui Xu , Mingtao Run , Cuimiao Zhang . 醋酸电离平衡常数测定实验的改进. University Chemistry, 2026, 41(5): 131-140. doi: 10.12461/PKU.DXHX202511002
10. [10]
  Dongxue Han , Zhuoyong Li , Hanbo Zou , Xu Wu , Yang Yuan , Hongbin Li . Research on Innovative Experimental Teaching to Cultivate Top Talents. University Chemistry, 2024, 39(7): 230-236. doi: 10.12461/PKU.DXHX202406094
11. [11]
  Qun Wang , Yang Li , Songtao Lu , Hongjun Kang , Yang Hong , Xiaohong Wu . Exploration for the Chemistry Innovative Talent Cultivation from an Interdisciplinary Perspective. University Chemistry, 2024, 39(8): 132-135. doi: 10.3866/PKU.DXHX202401052
12. [12]
  Haibo Zhang , Yuwen Liu , Qiong Ding , Chi Huang , Faqiong Zhao , Jinping Zhou . The Construction of National Demonstration Center for Experimental Chemistry Education and the Practice of Top-Notch Innovative Talent Cultivation. University Chemistry, 2024, 39(7): 82-92. doi: 10.12461/PKU.DXHX202405012
13. [13]
  Weihong Li , Hao Zhao , Qihan Zhang , Tian Li , Yingxia Wang . Promoting the Development of the National Demonstration Center for Experimental Chemistry Education to Foster Innovative Talent. University Chemistry, 2024, 39(7): 153-159. doi: 10.12461/PKU.DXHX202405064
14. [14]
  Jiamin Zhang , Zhen Fan , Jianzhong Du . Integrated Teaching Method Combining Domestic and International Perspectives: A Case Study on Cultivating Innovative Talents in Polymeric Biomaterials. University Chemistry, 2025, 40(7): 156-160. doi: 10.12461/PKU.DXHX202409131
15. [15]
  Yan Zhang , Luhong Chen , Zijian Guo . Innovative Practices in Interdisciplinary Chemistry-Biomedicine Research and Graduate Education. University Chemistry, 2025, 40(12): 137-141. doi: 10.3866/PKU.DXHX202509004
16. [16]
  Haiyuan Wang , Ning Ma , Faguang Zhang , Shanshan Cheng , Yixuan Wang , Hui Yang . Practical Research on Cultivating Top Innovative Talents in Tianjin University’s World-Class Chemistry Discipline. University Chemistry, 2026, 41(2): 168-177. doi: 10.12461/PKU.DXHX202503133
17. [17]
  Liangting Chen , Jianxun Fan , Jinhong Gao , Tianxin Zhang . Applications of diverse data processing software in physical chemistry experiments: a case study on determining acetic acid’s equilibrium constant via conductivity method. University Chemistry, 2026, 41(6): 457-466. doi: 10.12461/PKU.DXHX202504002
18. [18]
  Qingfeng Zhang , Shang-E Wei , Hua Hou , Xuan Zhao , Zixuan Yang , Lin Zhuang . Construction and Reform of the Structural Chemistry Curriculum and Textbooks under the Chemistry “101 Plan”: an In-Depth Exploration for Cultivating Top-Notch Innovative Talents. University Chemistry, 2024, 39(10): 38-44. doi: 10.12461/PKU.DXHX202409047
19. [19]
  Yinuo Wu , Sheng Yin , Wenhao Hu , Tian-Miao Ou . Exploration and Practice in Cultivating Innovative Pharmaceutical Talent through Strengthening Fundamental Education and Interdisciplinary Integration: A Case Study of School of Pharmaceutical Science at Sun Yat-Sen University. University Chemistry, 2025, 40(10): 72-77. doi: 10.12461/PKU.DXHX202412016
20. [20]
  Yan Li , Fei Ding , Jielun Yan , Qingyang Zhou , Zhe Wang , Yifan Shi , Jing Wang , Anna Tang . Improving Instrumental Analytical Chemistry Laboratory Teaching: Developing a Bilingual Classroom to Cultivate Innovative Talents. University Chemistry, 2025, 40(7): 83-89. doi: 10.12461/PKU.DXHX202409059

Get Citation

PDF

XML

Metrics

PDF Downloads(1)
Abstract views(102)
HTML views(15)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return