Home

Citation: Wang Yegen. Precise Expressions of End Point Error Based on Proton Balance Equation[J]. Chemistry, ;2016, 79(9): 876-879. shu

Precise Expressions of End Point Error Based on Proton Balance Equation

Wang Yegen

1.
Yancheng Vocational Institute of Health Sciences, Yancheng 224005

Received Date: 7 January 2016
Available Online: 3 May 2016

In volumetric analysis, error of titration determines the reliability of the analysis method. According to the proton balance equation, the precise expressions of the end point error can be derived. The expressions were calculated using the concentration of the substance at the beginning of the titration rather than the end point. The expressions were calculated with the pH at the end point of titration, and not need to calculate the pH at stoichiometric point. The expressions are universal, which can effectively reduce the difficulty of learning and memory, and improve the accuracy of the calculation results.
- End point error,
- Proton balance equation,
- Precise expressions,
- Acid-base titration
1. [1]
  [1] 武汉大学主编. 分析化学(上册).第5版.北京:高等教育出版社, 2006:147~152.
2. [2]
  [2] 陈国松, 卜洪忠, 边敏等.化学通报, 2015, 78(6):573~576.
3. [3]
  [3] 闭凤丽, 尹华勤, 甘峰. 化学通报, 2015, 78(9):859~863.
4. [4]
  [4] 邵利民. 化学通报, 2012, 75(10):952~956.
5. [5]
  [5] 任树林, 齐广才, 马红燕. 延安大学学报(自然科学版), 2011, 30(3):68~70.
1. [1]
  Limin Shao , Na Li . A Unified Equation Derived from the Charge Balance Equation for Constructing Acid-Base Titration Curve and Calculating Endpoint Error. University Chemistry, 2024, 39(11): 365-373. doi: 10.3866/PKU.DXHX202401086
2. [2]
  Wenhui Li , Changshuo Zhu , Xinyu Cui , Chenfei Zhao , Lina Qiu , Yan Li , Chuandong Wu , Min Yang , Yuan Zhuang . Visual Determination of Acid-Base Titration Endpoints Using Smartphone APP-Based Analysis. University Chemistry, 2025, 40(7): 328-335. doi: 10.12461/PKU.DXHX202409062
3. [3]
  Tiejun Su . The Construction and Application of the Calculation Formula for Endpoint Error in Precipitation Titration: A Case Study of the Mohr Method. University Chemistry, 2024, 39(11): 384-387. doi: 10.12461/PKU.DXHX202402039
4. [4]
  Na Li , Limin Shao . Deduction of the General Formula of the Inverse Function of the Titration Curve. University Chemistry, 2025, 40(3): 390-401. doi: 10.12461/PKU.DXHX202409134
5. [5]
  Juan Hou , Chen Zhou , Jing Sun . Teaching Design of the Classical Analytical Chemistry Content Based on Logical and Innovative Thinking: A Case Study of the Application of Acid-Base Titration Method. University Chemistry, 2024, 39(4): 221-226. doi: 10.3866/PKU.DXHX202310023
6. [6]
  Jiantao Zai , Hongjin Chen , Xiao Wei , Li Zhang , Li Ma , Xuefeng Qian . The Learning-Centered Problem-Oriented Experimental Teaching. University Chemistry, 2024, 39(4): 40-47. doi: 10.3866/PKU.DXHX202309023
7. [7]
  Chun-Lin Sun , Yaole Jiang , Yu Chen , Rongjing Guo , Yongwen Shen , Xinping Hui , Baoxin Zhang , Xiaobo Pan . Construction, Performance Testing, and Practical Applications of a Home-Made Open Fluorescence Spectrometer. University Chemistry, 2024, 39(5): 287-295. doi: 10.3866/PKU.DXHX202311096
8. [8]
  Fang Niu , Rong Li , Qiaolan Zhang . Analysis of Gas-Solid Adsorption Behavior in Resistive Gas Sensing Process. University Chemistry, 2024, 39(8): 142-148. doi: 10.3866/PKU.DXHX202311102
9. [9]
  Liping Guo , Hongmei Wang , Li Song , Mengli Li , Haiyang Guo . Reform and Practice of Exercise Lecture in Physical Chemistry Based on the Project-Driven Learning. University Chemistry, 2025, 40(7): 62-70. doi: 10.12461/PKU.DXHX202409102
10. [10]
  Xiaohui Li , Ze Zhang , Jingyi Cui , Juanjuan Yin . Advanced Exploration and Practice of Teaching in the Experimental Course of Chemical Engineering Thermodynamics under the “High Order, Innovative, and Challenging” Framework. University Chemistry, 2024, 39(7): 368-376. doi: 10.3866/PKU.DXHX202311027
11. [11]
  Haiping Wang . A Streamlined Method for Drawing Lewis Structures Using the Valence State of Outer Atoms. University Chemistry, 2024, 39(8): 383-388. doi: 10.12461/PKU.DXHX202401073
12. [12]
  Changsheng Lu . Discovering-and-Sharing Model: a Case of the Inorganic Chemistry Course in the Chemistry “101 Plan”. University Chemistry, 2024, 39(10): 78-83. doi: 10.12461/PKU.DXHX202408028
13. [13]
  Weihua Jiang , Yongsheng Zhou , Qiaoqiao Teng . Progressive Teaching Model in the Practice and Exploration of Ideological and Political Education in Laboratory Courses: Taking the Organic Chemistry Experiment “Synthesis of Aspirin” as an Example. University Chemistry, 2024, 39(2): 99-104. doi: 10.3866/PKU.DXHX202306028
14. [14]
  Qizhi Yao , Gu Jin , Pingping Zhu . Modular Analytical Chemistry Experimental Teaching Based on “Comprehensive + Exploratory” Experiments: “One Student, One Plan”, Individualized Experimental Teaching Method. University Chemistry, 2024, 39(3): 143-148. doi: 10.3866/PKU.DXHX202309071
15. [15]
  Xiping Luo , Xing Wang , Shengxiang Yang , Jianzhong Guo , Yuxuan Wang , Xuejuan Yang . Innovative “One Body, Dual Wings” Embedded Talent Cultivation Model: Practice in the Construction of Applied Chemistry Major at Zhejiang Agriculture and Forestry University. University Chemistry, 2024, 39(3): 205-209. doi: 10.3866/PKU.DXHX202309058
16. [16]
  Zhenming Xu , Mingbo Zheng , Zhenhui Liu , Duo Chen , Qingsheng Liu . Experimental Design of Project-Driven Teaching in Computational Materials Science: First-Principles Calculations of the LiFePO₄ Cathode Material for Lithium-Ion Batteries. University Chemistry, 2024, 39(4): 140-148. doi: 10.3866/PKU.DXHX202307022
17. [17]
  Suqing Shi , Anyang Li , Yuan He , Jianli Li , Xinjun Luan . Exploration and Practice of the “Progressive” Integrated Training Mode for Innovative Chemistry Talents at Comprehensive Universities in Western China. University Chemistry, 2024, 39(6): 42-49. doi: 10.3866/PKU.DXHX202402009
18. [18]
  Lina Liu , Xiaolan Wei , Jianqiang Hu . Exploration of Subject-Oriented Undergraduate Comprehensive Chemistry Experimental Teaching Based on the “STS Concept”: Taking the Experiment of Gold Nanoparticles as an Example. University Chemistry, 2024, 39(10): 337-343. doi: 10.12461/PKU.DXHX202405112
19. [19]
  Yuhao Chen , Zhuo Cheng , Qijun Hu , Jian Pei . 酸碱理论的发展历程. University Chemistry, 2025, 40(8): 368-375. doi: 10.12461/PKU.DXHX202412001
20. [20]
  Peihong Fan , Hongxiang Lou . 研究生高等天然药物化学课程的教学改革探索——导学互促式混合课堂教学与自主学习能力培养. University Chemistry, 2025, 40(6): 16-21. doi: 10.12461/PKU.DXHX202407078

Get Citation

PDF

XML

Metrics

PDF Downloads(4)
Abstract views(582)
HTML views(82)

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