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Citation: Mengyue Zhao, Jianhong Zhao. Law of Equal Amount of Substance and Its Application[J]. Chemistry, ;2021, 84(2): 182-184. shu

Law of Equal Amount of Substance and Its Application

Mengyue Zhao ,
Jianhong Zhao ^,

School of Chemical Engineering, Zhengzhou University, Zhengzhou, 450002

Corresponding author: Jianhong Zhao, zhaojh@zzu.edu.cn
Received Date: 21 July 2020
Accepted Date: 2 September 2020

The paper presents a strict definition for the law of equal amount of substance in titration: the amount of substance of electron lost is equal to the amount of substance of electron got in oxide-reduction titration; the amount of substance of proton lost equals the amount of substance of proton got in neutralization titration; the amount of substance of negative charge equals the amount of substance of positive charge in precipitation titration; the amount of substance of metal ions is equal to the amount of substance of complexone in complexometry. The law can be expressed by follow formula, \begin{document}$ \sum\limits_{i = 1}^{i = k} {\Delta n\left( {\frac{1}{{{z_{Ai}}}}} \right)} {A_i} = \sum\limits_{i = 1}^{i = p} {\Delta n\left( {\frac{1}{{{z_{Bi}}}}} \right)} {B_i}$\end{document}. The definition and formula can simplify and standardize complex titration calculations.
- Amount of substance,
- Elementary entity,
- Law of equal amount of substance
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