Lecture15 - 1-1Chapter 14Electrochemistry1-2Suggested Text Problems Chapter 144 5 9 12 14 16 17 19 24 25 26 1-3A major branch of analytical

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Unformatted text preview: 1-1Chapter 14Electrochemistry1-2Suggested Text Problems: Chapter 144, 5, 9, 12, 14, 16, 17, 19, 24, 25, 26 1-3A major branch of analytical chemistry uses electrical measurements of chemical processes at the surface of an electrodefor analytical purposes. For example, hormones released from a single cell can be measured in this manner. Principles developed in this chapter provide a foundation for potentiometry, redox titrations, electrogravimetric and coulometric analysis, voltammetry, and amperometryin the following chapters.1,21-4Electric ChargeElectric CurrentThe quantity of charge flowing each secondthrough a circuit is called the current. The unit of currentis the ampere, abbreviated A. A currentof 1 ampererepresents a charge of 1 coulombper secondflowing past a point in a circuit.1-5A redox reactioninvolves transfer of electrons from one speciesto another. A speciesis said to be oxidized when it loses electrons.It is reduced when it gains electrons....
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This note was uploaded on 07/23/2010 for the course CHM 3120 taught by Professor Harrison during the Fall '08 term at University of Florida.

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Lecture15 - 1-1Chapter 14Electrochemistry1-2Suggested Text Problems Chapter 144 5 9 12 14 16 17 19 24 25 26 1-3A major branch of analytical

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