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공통이온효과
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution…
완충용액
A solution containing appreciable amounts of a weak conjugate acid-base pair is called a buffer solution, or a buffer. Buffer solutions resist a…
핸더슨-하셀바흐 식
The ionization-constant expression for a solution of a weak acid can be written as: Rearranging to solve for [H3O+] yields: Taking the negative…
완충용액 내 pH 변화 계산
A buffer can prevent a sudden drop or increase in the pH of a solution after the addition of a strong acid or base up to its buffering capacity;…
완충용액 효과성
Buffer solutions do not have an unlimited capacity to keep the pH relatively constant . Instead, the ability of a buffer solution to resist changes…
산-염기 적정곡선
A titration curve is a plot of some solution property versus the amount of added titrant. For acid-base titrations, solution pH is a useful property…
적정 계산: 강산 - 강염기
Calculating pH for Titration Solutions: Strong Acid/Strong Base A titration is carried out for 25.00 mL of 0.100 M HCl (strong acid) with 0.100 M of…
적정 계산: 약산 - 약염기
Calculating pH for Titration Solutions: Weak Acid/Strong Base For the titration of 25.00 mL of 0.100 M CH3CO2H with 0.100 M NaOH, the reaction can be…
지시약
Certain organic substances change color in dilute solution when the hydronium ion concentration reaches a particular value. For example,…
다양성자 산의 적정
A polyprotic acid contains more than one ionizable hydrogen and undergoes a stepwise ionization process.  If the acid dissociation constants of…
용해평형
Solubility equilibria are established when the dissolution and precipitation of a solute species occur at equal rates. These equilibria underlie many…
용해도에 영향을 미치는 요인
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution…
착이온의 형성
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a…
이온의 침전
Predicting Precipitation The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is: It is important to…
정성분석
For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique…
고 순도 Nonsymmetric Dialkylphosphinic 산 Extractants의 합성
We present the synthesis of (2,3-dimethylbutyl)(2,4,4'-trimethylpentyl)phosphinic acid as an example to demonstrate a method for the synthesis of…
비스 - iminoguanidinium의 리간드 선택적 결정화에 의한 황산염 분리
A simple and effective method for selective sulfate separation from aqueous solutions by crystallization with a bis-guanidinium ligand,…

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