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Capítulo 16
Efecto del Ion Común
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution…
Amortiguadores
A solution containing appreciable amounts of a weak conjugate acid-base pair is called a buffer solution, or a buffer. Buffer solutions resist a…
Ecuación de Henderson-Hasselbalch
The ionization-constant expression for a solution of a weak acid can be written as: Rearranging to solve for [H3O+] yields: Taking the negative…
Calculando los Cambios de pH en una Solución Amortiguadora
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;…
Efectividad de un Amortiguador
Buffer solutions do not have an unlimited capacity to keep the pH relatively constant . Instead, the ability of a buffer solution to resist changes…
Curvas de Titulación Ácido-Base
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…
Cálculos de Titulación: Ácido Fuerte - Base Fuerte
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…
Cálculos de Titulación: Ácido Débil - Base Débil
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…
Indicadores
Certain organic substances change color in dilute solution when the hydronium ion concentration reaches a particular value. For example,…
Titulación de un Ácido Poliprótico
A polyprotic acid contains more than one ionizable hydrogen and undergoes a stepwise ionization process.  If the acid dissociation constants of…
Equilibrio de Solubilidad
Solubility equilibria are established when the dissolution and precipitation of a solute species occur at equal rates. These equilibria underlie many…
Factores que Afectan la Solubilidad
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution…
Formación de Iones Complejos
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a…
Precipitación Iónica
Predicting Precipitation The equation that describes the equilibrium between solid calcium carbonate and its solvated ions is: It is important to…
Análisis Cualitativo
For solutions containing mixtures of different cations, the identity of each cation can be determined by qualitative analysis. This technique…
Síntesis de solventes de extracción de alta pureza el ácido de Dialkylphosphinic
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…
La separación por cristalización selectiva sulfato con un ligando bis-iminoguanidinium
A simple and effective method for selective sulfate separation from aqueous solutions by crystallization with a bis-guanidinium ligand,…

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