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Chapter 10

Electrochemical Analyses and Redox Titration

Eletroquímica: Visão geral
Eletroquímica: Visão geral
Electrochemistry is the branch of chemistry that studies the relationship between electrical quantities and chemical reactions, particularly oxidation and ...
Eletrodos: Visão geral
Eletrodos: Visão geral
 Electrochemical measurements are conducted in an electrochemical cell composed of various components that control and measure the current and ...
Métodos eletroquímicos interfaciais: visão geral
Métodos eletroquímicos interfaciais: visão geral
Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that ...
Potenciometria: Visão geral
Potenciometria: Visão geral
Potentiometry is an analytical technique that measures the potential difference between two electrodes in an electrochemical cell without drawing any ...
Potenciometria: Tipos de eletrodos
Potenciometria: Tipos de eletrodos
Reference electrodes serve as a stable reference point for potentiometric measurements, while indicator and working electrodes react to variations in the ...
Potenciometria: Eletrodos de membrana
Potenciometria: Eletrodos de membrana
Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference ...
Titulação redox: visão geral
Titulação redox: visão geral
Redox titration is a chemical analysis technique used to determine the concentration of an unknown substance by measuring the electron transfer in a redox ...
Titulação Redox: Iodometria e Iodometria
Titulação Redox: Iodometria e Iodometria
Iodometry and iodimetry are analytical methods used to determine the concentration of oxidizing or reducing agents using iodine. In iodometric titrations, ...
Titulação redox: outros agentes oxidantes e redutores
Titulação redox: outros agentes oxidantes e redutores
Besides iodine, other oxidizing or reducing agents can serve as titrants in redox titrations. Common oxidizing titrants include KMnO4, cerium(IV), and ...
Titulação potenciométrica: Visão geral
Titulação potenciométrica: Visão geral
Potentiometric titration is a quantitative analytical technique that determines the concentration of an analyte by measuring the potential difference ...
Previsão do ponto final: Gran Plot
Previsão do ponto final: Gran Plot
A Gran plot is used to predict the equivalence volume or endpoint of a potentiometric or acid-base titration without reaching the endpoint. Typically, ...
Análise eletrogravimétrica: visão geral
Análise eletrogravimétrica: visão geral
Electrogravimetric analysis measures the weight of an analyte deposited electrolytically onto a suitable working electrode. This method involves applying ...
Coulometria: Visão geral
Coulometria: Visão geral
Coulometry is one of the rapid, most accurate, and precise analytical techniques that determine the quantity of an analyte by measuring the electrical ...
Coulometria de Potencial Controlado: Métodos Eletrolíticos
Coulometria de Potencial Controlado: Métodos Eletrolíticos
Controlled-potential coulometry, also known as potentiostatic coulometry, employs a three-electrode system in which the working electrode's potential ...
Coulometria de corrente controlada: Visão geral
Coulometria de corrente controlada: Visão geral
Controlled current coulometry, also known as amperostatic coulometry, is a technique used in electrochemical analysis to measure the quantity of a ...
Coulometria de Corrente Controlada: Titulação Coulométrica
Coulometria de Corrente Controlada: Titulação Coulométrica
Coulometric titrations are a form of titrimetric analysis where the reagent is generated electrically, and its amount is evaluated based on current and ...
Voltametria: Visão geral
Voltametria: Visão geral
Voltammetry is an electroanalytical technique in which the current flowing through an electrochemical cell is measured as a function of applied potential, ...
Voltametria: Fatores que afetam as medições
Voltametria: Fatores que afetam as medições
A current produced due to the redox reactions of the analyte at the working and auxiliary electrodes is called a faradaic current. The reaction can be ...
Voltamogramas: Visão geral
Voltamogramas: Visão geral
Voltammograms are current plots as a function of applied potential, offering insights into electrochemical systems. The shape of a voltammogram depends on ...
Técnicas Voltamétricas: Varredura Linear (E vs Tempo)
Técnicas Voltamétricas: Varredura Linear (E vs Tempo)
Polarography is a classical voltammetric technique used to analyze electrochemical reactions. This method applies a linear potential sweep to a dropping ...
Técnicas Voltamétricas: Voltametria de Pulso
Técnicas Voltamétricas: Voltametria de Pulso
Differential-pulse voltammetry (DPV) is a type of voltammetry that involves applying a series of voltage pulses to an electrochemical cell while measuring ...
Técnicas Voltamétricas: Voltametria Cíclica
Técnicas Voltamétricas: Voltametria Cíclica
Cyclic voltammetry (CV) is an electrochemical technique used to investigate the redox properties of a chemical species. It involves measuring the current ...
Voltametria: Métodos de Decapagem
Voltametria: Métodos de Decapagem
Anodic Stripping Voltammetry (ASV), Cathodic Stripping Voltammetry (CSV), and Adsorptive Stripping Voltammetry (AdSV) are electrochemical techniques used ...
Amperometria: Visão geral
Amperometria: Visão geral
Amperometry is a technique commonly used to measure the concentration of specific analytes in a solution by monitoring the electric current generated ...
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